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Stock-Based Compensation - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Jul. 31, 2023
Jun. 30, 2023
Jan. 31, 2022
Jun. 30, 2021
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2020
Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Common stock reserved for future issuance         37,049,000      
Share based compensation recognized         $ 7,373,000 $ 2,195,000    
Tranche One                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Share based compensation recognized         $ 100 $ 0    
Executives                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Stock options granted to purchase         446,068      
Advisors                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Share based compensation forfeited         254,896      
Market Award                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Share based compensation granted under plan vested period   3 years            
Grant date fair value       $ 900,000        
Expected volatility       100.00%        
Risk-free rate       1.60%        
Total incremental expense resulted in modification   $ 100,000 $ 300,000          
Market Award | Tranche One                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Number of options vested   111,517 223,034          
Market Award | Tranche Two                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Number of options vested   111,517 111,517          
Market Award | Tranche Three                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Number of options vested     111,517          
Market Award | Executives                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Stock options granted, exercise price       $ 2.52        
Market Award | Executives | Common Stock                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Granted, outstanding stock options       446,068        
Awards with Performance Conditions                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Granted, outstanding stock options         401,462      
Stock options, cancelled 299,503              
Awards with Performance Conditions | Common Stock                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Granted, outstanding stock options             700,965  
Awards with Performance Conditions | Restricted Common Stock                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Granted, outstanding stock options         382,344   892,136  
Stock options, cancelled 254,896       254,896      
Stock Option                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Unrecognized stock-based compensation         $ 89,700,000      
Weighted-average remaining service period         2 years 7 months 6 days      
Restricted Stock                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Share based compensation forfeited         0      
Unvested shares repurchased         0      
Shares or restricted stock remained outstanding and unvested         650,000     840,000
Unrecognized stock-based compensation         $ 28,200,000      
Weighted-average remaining service period         3 years 4 months 24 days      
2023 Equity Incentive Plan                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Share based compensation, term of plan         10 years      
Share based compensation granted under plan vested period         4 years      
Common stock reserved for future issuance         16,373,061      
2023 Equity Incentive Plan | Maximum                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Grants vest percentage         100.00%      
2020 Equity Incentive Plan                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Granted, outstanding stock options         0      
2023 Employee Share Purchase Plan                
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                
Common stock reserved for future issuance         1,526,984