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Stockholders' Equity - Additional Information (Details)
1 Months Ended 3 Months Ended 4 Months Ended 6 Months Ended 12 Months Ended 66 Months Ended
May 23, 2023
USD ($)
$ / shares
shares
Dec. 16, 2020
USD ($)
$ / shares
shares
Oct. 29, 2019
USD ($)
$ / shares
shares
Jul. 31, 2023
shares
Feb. 28, 2023
USD ($)
shares
Jan. 31, 2023
shares
Sep. 30, 2022
USD ($)
shares
Jul. 31, 2022
shares
Jan. 31, 2022
shares
Aug. 31, 2021
shares
Nov. 30, 2020
Nov. 30, 2019
$ / shares
shares
Oct. 31, 2019
shares
May 31, 2019
shares
Mar. 31, 2019
shares
Jun. 30, 2023
USD ($)
shares
Mar. 31, 2023
USD ($)
shares
Jun. 30, 2022
USD ($)
Mar. 31, 2022
shares
May 06, 2019
USD ($)
shares
Jun. 30, 2023
USD ($)
$ / shares
shares
Jun. 30, 2022
USD ($)
$ / shares
Dec. 31, 2022
shares
Dec. 31, 2019
shares
Jun. 30, 2023
USD ($)
shares
Jan. 01, 2023
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Preferred stock, shares authorized                               40,000,000         40,000,000   40,000,000   40,000,000  
Preferred stock, shares issued                               0         0   0   0  
Preferred stock, shares outstanding                               0         0   0   0  
Stock options, granted                                         1,148,660          
Stock-based compensation cost | $                               $ 7,253,000   $ 5,885,000     $ 14,301,000 $ 11,660,000        
Unrecognized stock-based compensation expense | $                               $ 10,300,000         $ 10,300,000       $ 10,300,000  
Common stock reserved for issuance                               10,626,008         10,626,008       10,626,008  
Unrecognized stock-based compensation expense | $                               $ 33,200,000         $ 33,200,000       $ 33,200,000  
Unrecognized stock-based compensation expense, weighted-average period for recognition                                         1 year 10 months 24 days          
Defined contribution plan employer contribution liabilities expense | $                               $ 400,000   300,000     $ 1,200,000 $ 900,000        
Defined contribution plan, employer matching contribution, percentage                                         75.00%          
Employer discretionary match number of shares settled           52,130   84,784 16,756 18,394                                
Dividend yield                                         0.00% 0.00%        
Subsequent Event                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Employer discretionary match number of shares settled       83,826                                            
Stock Options                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Dividend yield                                         0.00%          
Restricted Stock Units (RSUs)                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Unrecognized stock-based compensation expense, weighted-average period for recognition                                         2 years 1 month 6 days          
2019 Equity Incentive Plan                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Common stock, shares authorized for issuance                                               2,231,739    
Stock options, granted                                               1,400,528    
Number of shares available for issuance                         0                          
2019 Equity Incentive Plan | Restricted Stock                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Stock awards, granted                                               16,260    
2019 Incentive Award Plan                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Annual increase to shares available for issuance percentage of outstanding common stock                         5.00%                          
Equity plan, description                                         The number of shares initially available for issuance will be increased by (i) the number of shares subject to stock options or similar awards granted under the Existing Incentive Plan that expire or otherwise terminate without having been exercised in full after the effective date of the 2019 Plan and unvested shares issued pursuant to awards granted under the Existing Incentive Plan that are forfeited to or repurchased by the Company after the effective date of the 2019 Plan, with the maximum number of shares to be added to the 2019 Plan pursuant to clause (i) above equal to 1,416,788 shares, and (ii) an annual increase on January 1 of each calendar year beginning in 2020 and ending in 2029, equal to the lesser of (a) 5% of the shares of common stock outstanding on the final day of the immediately preceding calendar year and (b) such smaller number of shares as determined by the board of directors. As of June 30, 2023, 520,803 shares remain available for issuance, which reflects 2,559,070 of stock option, performance-based unit, or PSU, and restricted stock unit, or RSU, awards granted, and 35,823 of awards cancelled or forfeited, during the six months ended June 30, 2023 as well as an annual increase of 2,086,165 shares authorized on January 1, 2023.          
Number of shares remain available for issuance, annual increase                               2,086,165         2,086,165       2,086,165  
Common stock reserved for issuance                               520,803         520,803       520,803  
2019 Incentive Award Plan | Performance-Based Stock Units (PSU)                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Stock awards, granted                                         597,650   37,500      
Stock-based compensation cost | $                                         $ 0          
Unrecognized stock-based compensation expense | $                               $ 19,300,000         $ 19,300,000       $ 19,300,000  
2019 Incentive Award Plan | Stock options, PSUs and RSUs                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Number of awards, granted                                         2,559,070          
Number of awards, cancelled or forfeited                                         35,823          
2019 Incentive Award Plan | Restricted Stock Units (RSUs)                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Stock awards, granted                                         812,760          
Employee Stock Purchase Plan                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Number of shares available for issuance                               1,048,370         1,048,370       1,048,370  
Annual increase to shares available for issuance percentage of outstanding common stock                         1.00%                          
Equity plan, description                                         In addition, the number of shares available for issuance under the ESPP will be annually increased on January 1 of each calendar year beginning in 2020 and ending in 2029, by an amount equal to the lesser of: (i) 1% of the shares outstanding on the final day of the immediately preceding calendar year and (ii) such smaller number of shares as is determined by the board of directors. As of June 30, 2023, 1,048,370 shares of common stock remain available for issuance, which includes the 121,801 shares sold to employees during the six months ended June 30, 2023 as well as an annual increase of 417,233 shares authorized on January 1, 2023.          
Number of shares remain available for issuance, annual increase                                                   417,233
Stock-based compensation cost | $                               $ 200,000   $ 100,000     $ 300,000 $ 100,000        
Common stock reserved for issuance                         270,000     1,048,370         1,048,370       1,048,370  
Number of shares issued                                         121,801          
Estimated weighted-average fair value | $ / shares                                         $ 2.87 $ 5.31        
Unrecognized stock-based compensation expense | $                               $ 100,000         $ 100,000       $ 100,000  
Unrecognized stock-based compensation expense, weighted-average period for recognition                                         1 month 6 days          
Underwritten Public Offering                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Common stock shares issued 12,793,750 2,250,000                                                
Stock Issued During Period, Value, New Issues | $                               $ 141,390,000                    
Common stock, price per share | $ / shares $ 11.75 $ 42.00                                                
Proceeds from issuance initial public offering gross | $ $ 150,300 $ 94,500,000                                                
Purchase price per share after deducting underwriting discounts and commissions | $ / shares $ 11.08 $ 39.48                                                
Net proceeds after deducting underwriters commission | $ $ 141,800 $ 88,800,000                                                
Purchase of additional offering expenses | $ $ 400 $ 200,000                                                
At-the-Market Offering Program                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Common stock shares issued         1,514,219   2,414,897                                   3,929,116  
Stock Issued During Period, Value, New Issues | $                                 $ 14,073,000                  
Proceeds from issuance of shares | $         $ 14,100,000   $ 24,600,000                           $ 14,073,000       $ 38,700,000  
Stock issuance costs | $         $ 400,000   $ 800,000                                      
Amount utilized of equity financing | $                                         39,900,000          
Available equity financing amount | $                                         $ 125,000,000          
Employee and Nonemployee Director                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Estimated weighted-average fair value | $ / shares                                         $ 5.31          
Open Market Sale Agreement with Jefferies LLC | At-the-Market Offering Program                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Sales commission payable as a percentage of sale of gross sales price per share                     3.00%                              
Common Stock                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Common stock shares issued                                       2,524,852            
Number of shares authorized to repurchase                             3,373,408                      
Stock repurchase program, number of shares right lapse                             843,352                      
Remaining number of shares to be repurchased                             2,530,056                      
Stock repurchase program, period in force                             48 months                      
Stock repurchase program expiration period                             2023-03                      
Proceeds from issuance of shares | $                                       $ 1,000            
Repurchase right lapse each month after first anniversary, shares                                       0.000208            
Repurchases of shares                       17,560                            
Shares aggregate repurchase price | $ / shares                       $ 5.20                            
Employer discretionary match number of shares settled                                 52,130   16,756              
Common Stock | 2019 Incentive Award Plan                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Additional number of shares available for issuance                         1,416,788                          
Common Stock | Employee Stock Purchase Plan                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Maximum percentage of eligible compensation contributed by participants                         20.00%                          
Common Stock | IPO                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Common stock shares issued     10,997,630                                              
Common stock, price per share | $ / shares     $ 19.00                                              
Proceeds from Initial Public Offering (IPO) | $     $ 191,500,000                                              
Common Stock | Underwritten Public Offering                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Common stock shares issued 1,668,750   1,434,473                         12,793,750                    
Stock Issued During Period, Value, New Issues | $                               $ 1,000                    
Common Stock | At-the-Market Offering Program                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Common stock shares issued                                 1,514,219                  
Stock Issued During Period, Value, New Issues | $                                 $ 1,000                  
Common Stock | Employees                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Remaining number of shares to be repurchased                               0         0       0  
Common Stock | First Anniversary                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Initial repurchase right lapse rate                                       25.00%            
Common Stock | Takeda License                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Common stock shares issued                           1,084,000                        
Common Stock | Founders                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Remaining number of shares to be repurchased                               0         0       0  
Common Stock | Frazier                                                    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                                                    
Common stock shares issued                             1,491,072