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Stockholders' Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 12 Months Ended 14 Months Ended
Jun. 30, 2021
Apr. 30, 2021
Nov. 30, 2020
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2021
Jun. 15, 2021
Class of Stock [Line Items]                
Common stock, shares authorized (in shares)       125,000,000 125,000,000      
Common stock, par value (in dollars per share)       $ 0.01 $ 0.01      
Proceeds from issuance of common stock, net of offering costs       $ 616 $ 1,085 $ 117,818    
Zai Lab | 2021 Zai Lab Agreements                
Class of Stock [Line Items]                
Sale of common stock (in dollars per share)               $ 31.30
Proceeds of stock sale $ 30,000              
Undesignated Preferred Stock                
Class of Stock [Line Items]                
Undesignated preferred stock, shares authorized (in shares)       5,000,000        
Undesignated preferred stock, par value (in dollars per share)       $ 0.01 $ 0.01      
Undesignated preferred stock, shares issued (in shares)       0 0      
Undesignated preferred stock, shares outstanding (in shares)       0 0      
At The Market Offering                
Class of Stock [Line Items]                
Common stock maximum amount available for issuance     $ 100,000          
Sale of common stock (in shares)       160,480 95,000   3,622,186  
Sale of common stock (in dollars per share)       $ 6.87 $ 6.60      
Proceeds of stock sale       $ 1,100 $ 600   $ 98,200  
Common Stock, Maximum Amount Available For Issuance, Increase   $ 300,000