General form of registration statement for all companies including face-amount certificate companies

Common Stock - Additional Information (Detail)

v3.21.2
Common Stock - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
6 Months Ended 12 Months Ended
Nov. 21, 2016
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2017
Class of Stock [Line Items]            
Common stock shares authorized   149,793,455 149,793,455 149,793,455 149,793,455  
Common stock par or stated value per share   $ 0.00001 $ 0.00001 $ 0.00001 $ 0.00001  
Common stock shares issued   35,693,292   35,305,759 35,154,952  
Common stock shares outstanding   35,693,292   35,305,759 35,154,952  
Common stock shares voting rights   one one one one  
Share based compensation by share based payment arrangement options excercised during the period weighted average exercise price   $ 0.02        
Former Parent Company [Member]            
Class of Stock [Line Items]            
Stock issued during the period shares 29,382,750          
Share repurchase programme number of shares authorized to be repurchased   29,382,750   29,382,750    
Restricted Stock [Member] | Restricted Stock Purchase Agreements [Member]            
Class of Stock [Line Items]            
Stock issued during the period shares restricted stock awards   240,000       240,000
Restricted stock shares subject to repurchase   146,250   158,250 182,250  
Restricted stock shares weighted average repurchase price per share   $ 0.1   $ 0.1    
Share repurchase liability current   $ 0.1   $ 0.1    
Former Parent Options [Member] | Former Parent Company [Member]            
Class of Stock [Line Items]            
Stock issued during the period shares exercise of stock options 9,382,750          
Share based compensation by share based payment arrangement options excercised during the period weighted average exercise price $ 0.02          
Former Parent Options [Member] | Former Parent Company [Member] | Early Exercise Of Stock Options [Member]            
Class of Stock [Line Items]            
Stock issued during the period shares exercise of stock options 5,451,507          
Shares to be repurchased price per share   $ 0.02   $ 0.02    
Former Parent Restricted Stock Units [Member] | Former Parent Company [Member]            
Class of Stock [Line Items]            
Stock issued during the period shares restricted stock awards 20,000,000          
Share based compensation by share based payment arrangement equity instruments other than options non vested outstanding 6,944,444