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Redeemable Convertible Preferred Shares - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2019
Class of Stock [Line Items]      
Conversion Rate Of Preferred Shares To Ordinary Shares $ 1   $ 1
Redeemable Convertible Preferred Stock Voting Rights   65  
Preferred Stock, Amount of Preferred Dividends in Arrears   $ 64,578  
Preferred Stock, Dividend Rate, Percentage   7.00%  
Series C Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred Stock, Convertible, Terms   If the IPO closing price, is less than 1.2 times the then applicable Conversion Price of the Preferred C Shares, then, immediately prior to closing of such initial public offering (and, for the avoidance of doubt, prior to the conversion of the Preferred C Shares into Ordinary Shares) the then applicable Conversion Price of the Preferred C Shares shall be automatically reduced so as to be equal to the IPO Closing Price divided by 1.2.  
Series D Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred Stock, Convertible, Terms   If the IPO closing price, is less than 1.2 times the then applicable Conversion Price of the Series D Preferred Shares, then, immediately prior to closing of such initial public offering (and, for the avoidance of doubt, prior to the conversion of the Series D Preferred Shares into Ordinary Shares) the then applicable Conversion Price of the Series D Preferred Shares shall be automatically reduced so as to be equal to the IPO closing price divided by 1.2.  
Series E Preferred Stock [Member]      
Class of Stock [Line Items]      
Preferred Stock, Convertible, Terms   If the IPO closing price, is less than 1.5 times the then applicable Conversion Price of the Series E Preferred Shares, then, immediately prior to closing of such initial public offering (and, for the avoidance of doubt, prior to the conversion of the Series E Preferred Shares into Ordinary Shares) the then applicable Conversion Price of the Series E Preferred Shares shall be automatically reduced so as to be equal to the IPO closing price divided by 1.5.  
By vote or written consent [Member]      
Class of Stock [Line Items]      
Redeemable Convertible Preferred Stock Voting Rights   70  
Voting together as a single class or by consent of such required majority [Member]      
Class of Stock [Line Items]      
Redeemable Convertible Preferred Stock Voting Rights   50  
Qualified IPO [Member]      
Class of Stock [Line Items]      
Net Proceeds $ 100