Quarterly report pursuant to Section 13 or 15(d)

Nature of Business - Additional Information (Details)

v3.21.1
Nature of Business - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Jan. 22, 2021
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Class Of Stock [Line Items]            
Gross proceeds from common stock     $ 11,937      
Net Loss   $ 14,228 17,226 $ 84,000 $ 75,400 $ 62,300
Accumulated deficit   (391,249)   (377,021)    
Cash and cash equivalents   $ 222,142 $ 116,873 $ 173,984 $ 41,441  
Underwritten Public Offering            
Class Of Stock [Line Items]            
Shares issued 5,400,000          
Public offering price per share $ 14.00          
Gross proceeds from common stock $ 75,600          
Underwriting discounts and commissions and other transaction expenses $ 5,100