Quarterly report pursuant to Section 13 or 15(d)

Common Stock - Summary of Stock Option Activity (Details)

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Common Stock - Summary of Stock Option Activity (Details) - Employee Stock Option - 2019 Plan - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Number of Shares    
Number of Shares, Beginning Balance 8,141,035  
Number of Shares, Granted 1,858,200  
Number of Shares, Exercised (167,813)  
Number of Shares, Ending Balance 9,831,422 8,141,035
Number of Shares, Options Exercisable 4,457,253  
Weighted Average Exercise Price    
Weighted Average Exercise Price, Beginning Balance $ 8.28  
Weighted Average Exercise Price, Granted 23.8  
Weighted Average Exercise Price, Exercised 6.61  
Weighted Average Exercise Price, Ending Balance 11.24 $ 8.28
Weighted Average Exercise Price, Options Exercisable $ 7.63  
Weighted Average Remaining Contractual Term (years)    
Term (years) 7 years 9 months 18 days 7 years 7 months 6 days
Weighted Average Remaining Contractual Term (years), Options Exercisable 6 years 6 months  
Aggregate Intrinsic Value    
Aggregate Intrinsic Value, Beginning Balance $ 117,384  
Aggregate Intrinsic Value, Exercised 2,615  
Aggregate Intrinsic Value, Ending Balance 69,765 $ 117,384
Aggregate Intrinsic Value, Options Exercisable $ 42,026