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Stockholders' Equity - Additional Information (Details) - USD ($)
1 Months Ended 12 Months Ended
Nov. 27, 2023
Dec. 15, 2022
Nov. 08, 2022
Aug. 06, 2021
Jul. 02, 2021
Jun. 16, 2020
Nov. 30, 2023
Jun. 30, 2020
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Common stock shares authorized (in shares)           400,000,000     400,000,000 400,000,000  
Preferred stock undesignated shares authorized (in shares)           40,000,000          
Common stock par value per share (in dollars per share)           $ 0.0001     $ 0.0001 $ 0.0001  
Preferred stock par value per share (in dollars per share)           $ 0.0001          
Preferred stock, shares outstanding (in shares)                 0 0 0
Public offering issuance costs                   $ 18,230,000 $ 11,262,000
Proceeds from issuance of common stock in public offerings, net of issuance costs                 $ 60,547,000 344,779,000 174,677,000
Issuance of common stock, net of issuance costs                   344,616,000 174,677,000
Award vesting period                 4 years    
Total stock-based compensation expense                 $ 38,222,000 $ 27,139,000 $ 17,056,000
Expected dividend yield                 0.00%    
Unrecognized compensation cost, options                 $ 66,000,000    
Research Collaboration, License Agreement and Securities Purchase Agreement with BMS                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Sale of stock, consideration received on transaction             $ 40,000,000        
Employee Stock                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Shares available for grant (in shares)                 372,517    
Weighted-average period of unrecognized compensation cost                 6 months    
Participant maximum contribution as percentage of eligible compensation               15.00%      
Expected volatility rate period                 6 months    
Award offering period                 6 months    
Percentage of purchase price of shares of lower of fair market value               85.00%      
Shares issued under ESPP (in shares)                 175,511 90,535 33,147
Expected term (in years)                 6 months 6 months 6 months
Expected dividend yield                 0.00% 0.00% 0.00%
Unrecognized compensation cost, excluding options                 $ 400,000    
Stock Options                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Weighted-average period of unrecognized compensation cost                 2 years 6 months    
Expected dividend yield                 0.00% 0.00% 0.00%
Performance stock units                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Expiration period                 2 years    
Granted (in shares)                 750,000    
Granted (in dollars per share)                 $ 6.57    
PSUs vested (in shares)                 0    
Total stock-based compensation expense                 $ 0    
Unrecognized compensation cost                 $ 4,900,000    
Restricted stock units                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Award vesting period                 4 years    
Weighted-average period of unrecognized compensation cost                 4 years    
Granted (in shares)                 822,000    
Granted (in dollars per share)                 $ 18.89    
PSUs vested (in shares)                 0    
Unrecognized compensation cost                 $ 11,100,000    
Accounts Payable and Accrued Liabilities | Employee Stock                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Outstanding liability                 $ 100,000    
Maximum | Stock Options                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Expected term (in years)                 6 years 1 month 6 days 6 years 1 month 6 days 6 years 1 month 6 days
Minimum | Stock Options                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Expected term (in years)                 5 years 6 months 5 years 6 months 5 years 6 months
Weighted Average | Restricted stock units                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Weighted-average period of unrecognized compensation cost                 3 years 2 months 12 days    
2013 Equity Incentive Plan | Maximum                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Expiration period                 10 years    
2020 Incentive Award Plan                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Shares of common stock reserved for future issuance (in shares)               3,900,000      
Percentage of shares of common stock outstanding on final day of immediately preceding calendar year               5.00%      
Shares available for grant (in shares)                 499,402    
Additional shares reserved for future issuance (in shares)                 3,500,000    
2020 Incentive Award Plan | Maximum                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Expiration period                 10 years    
2022 Employment Inducement Incentive Award Plan                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Shares of common stock reserved for future issuance (in shares)                   1,500,000  
Shares available for grant (in shares)                 737,475    
2022 Employment Inducement Incentive Award Plan | Maximum                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Expiration period                 10 years    
Common Stock                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Issuance of common stock, net of issuance costs                   $ 2,000 $ 1,000
Shares issued under ESPP (in shares)                 176,000 91,000 33,000
Public Offering                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Sale of stock number of shares issued in transaction (in shares)           16,560,000          
Sale of stock, price per share (in dollars per share)           $ 18.00          
Public offering issuance costs           $ 24,000,000          
Proceeds from the IPO, net of underwriting discounts, commissions and offering costs           $ 274,100,000          
Private Placement, 2021 Sales Agreement | Sales Agent                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Sale of stock number of shares issued in transaction (in shares)                 4,107,810,000 7,771,812  
Public offering issuance costs                 $ 1,400,000 $ 3,700,000  
Sale of common stock maximum aggregate offering price         $ 150,000,000            
Proceeds from issuance of common stock in public offerings, net of issuance costs                 60,500,000 $ 121,100,000  
Private Placement, 2022 Sales Agreement | Sales Agent                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Sale of common stock maximum aggregate offering price     $ 200,000,000                
Follow-on Public Offering | Common Stock                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Sale of stock number of shares issued in transaction (in shares)   13,800,000   9,200,000              
Sale of stock, price per share (in dollars per share)   $ 17.25   $ 18.00              
Public offering issuance costs   $ 14,300,000   $ 10,500,000              
Sale of stock, consideration received on transaction   $ 223,800,000   $ 155,100,000              
Private Placement                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Public offering issuance costs                 74,000    
Issuance of common stock, net of issuance costs                 31,190,000    
Private Placement | Research Collaboration, License Agreement and Securities Purchase Agreement with BMS                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Sale of stock number of shares issued in transaction (in shares) 5,075,304           5,075,304        
Sale of stock, price per share (in dollars per share)             $ 7.8813        
Public offering issuance costs $ 100,000                    
Sale of stock, consideration received on transaction 40,000,000           $ 40,000,000        
Issuance of common stock, net of issuance costs $ 31,200,000                    
Premium In excess of fair value             $ 8,700,000        
Private Placement | Common Stock                      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                      
Issuance of common stock, net of issuance costs                 $ 1,000