XML 107 R85.htm IDEA: XBRL DOCUMENT v3.22.1
Share-Based Compensation - Summary of Company's Employee Share Option Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Jan. 01, 2021
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]        
Number of options, Outstanding, Beginning balance 511,790      
Number of options, Granted 385,120      
Number of options, Exercised (123,811)      
Number of options, Forfeited (230,271)      
Number of options, Outstanding, Ending balance 542,828 511,790    
Number of options, Vested and expected to vest, Ending balance 517,519      
Number of options, Exercisable, Ending balance 104,324      
Weighted average exercise price, Outstanding, Beginning balance $ 63.83      
Weighted average exercise price, Granted 47.06      
Weighted average exercise price, Exercised 45.35      
Weighted average exercise price, Forfeited 79.60      
Weighted average exercise price, Outstanding, Ending balance 51.33 $ 63.83    
Weighted average exercise price, Vested and expected to vest 49.68      
Weighted average exercise price, Exercisable 50.03      
Weighted average grant date fair value, Outstanding, Beginning balance 41.10      
Weighted average grant date fair value, Outstanding, Granted 23.00 40.52 $ 45.26  
Weighted average grant date fair value, Outstanding, Ending balance 25.80 $ 41.10    
Weighted average grant date fair value, Vested or expected to vest 25.98      
Weighted average grant date fair value, Exercisable $ 35.69      
Weighted average remaining contractual term 8 years 10 months 17 days 7 years 6 months 14 days    
Weighted average remaining contractual term, Vested and expected to vest 8 years 10 months 13 days      
Weighted average remaining contractual term, Exercisable 6 years 9 months 3 days      
Aggregate intrinsic value of share options, Outstanding $ 206     $ 18,910
Aggregate intrinsic value of share options, Exercisable 206      
Aggregate intrinsic value of share options, Vested and expected to vest $ 206