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Organization - Additional Information (Detail)
$ / shares in Units, $ in Thousands
12 Months Ended
Aug. 04, 2020
shares
Jul. 24, 2020
USD ($)
$ / shares
shares
Jul. 17, 2020
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2021
USD ($)
Proceeds from issuance of common stock upon initial public offering, net of underwriting discounts and commissions   $ 262,400   $ 267,021  
Payment of deferred offering costs       2,974  
Redeemable convertible preferred stock, shares issued upon conversion | shares   20,824,938      
Accumulated deficit       $ (165,992) $ (296,315)
Cash and cash equivalents and short-term investments         $ 242,700
Common Stock [Member]          
Shares issued during the period | shares       16,889,403  
Description of reverse stock split     one-for-8.81 basis    
Reverse stock split, conversion ratio     0.113507378    
IPO [Member]          
Shares issued during the period | shares   14,750,000      
Shares issued price per share | $ / shares   $ 17.00      
Payments for underwriting expense   $ 20,100      
Payment of deferred offering costs   $ 4,600      
Over-Allotment Option [Member]          
Shares issued during the period | shares 2,139,403