XML 81 R61.htm IDEA: XBRL DOCUMENT v3.22.1
Earnings (Loss) Per Share - Schedule of Antidilutive Securities Excluded from Computation (Detail) - shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Redeemable Convertible Preferred Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities   51,236,189
Share options [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities 35,764,660