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

Share-Based Compensation - Summary of Share Based Compensation Stock Options Activity Under PredaSAR Plan (Detail)

v3.22.1
Share-Based Compensation - Summary of Share Based Compensation Stock Options Activity Under PredaSAR Plan (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Schedule Of Share Based Compensation Stock Options Activity [Line Items]    
Number of Options,Outstanding as of December 31, 2020 115,791  
Number of Options,Granted 0  
Number of Options,Exercised 21,716  
Number of Options,Forfeited 17,119  
Number of Options,Outstanding as of December 31, 2021 76,956 115,791
Number of Options, Exercisable as of December 31, 2021 58,445  
Weighted- Average Exercise Price,Outstanding as of December 31, 2020 $ 24.59  
Weighted- Average Exercise Price,Granted 0  
Weighted- Average Exercise Price,Exercised 10.90  
Weighted- Average Exercise Price,Forfeited 32.16  
Weighted- Average Exercise Price,Outstanding as of December 31, 2021 26.76 $ 24.59
Weighted- Average Exercise Price, Exercisable as of December 31, 2021 $ 23.16  
Aggregate Intrinsic Value,Outstanding as of December 31, 2020   $ 5,763
Aggregate Intrinsic Value,Outstanding as of December 31, 2021 $ 12,797  
Aggregate Intrinsic Value,Exercisable as of December 31, 2021 $ 9,929  
Weighted- Average Remaining Contractual Term, Outstanding 5 years 4 months 20 days 6 years 3 months
PredaSAR Plan [Member]    
Schedule Of Share Based Compensation Stock Options Activity [Line Items]    
Number of Options,Outstanding as of December 31, 2020 1,967  
Number of Options,Granted 0  
Number of Options,Exercised 0  
Number of Options,Forfeited 45  
Number of Options, Cancelled and replaced (1,922)  
Number of Options,Outstanding as of December 31, 2021 0 1,967
Number of Options, Exercisable as of December 31, 2021 0  
Weighted- Average Exercise Price,Outstanding as of December 31, 2020 $ 988.64  
Weighted- Average Exercise Price,Granted 0  
Weighted- Average Exercise Price,Exercised 0  
Weighted- Average Exercise Price,Forfeited 917.25  
Weighted- Average Exercise Price, Cancelled and replaced 990.31  
Weighted- Average Exercise Price,Outstanding as of December 31, 2021 0 $ 988.64
Weighted- Average Exercise Price, Exercisable as of December 31, 2021 $ 0  
Aggregate Intrinsic Value,Outstanding as of December 31, 2020   $ 0
Aggregate Intrinsic Value,Outstanding as of December 31, 2021 $ 0  
Aggregate Intrinsic Value,Exercisable as of December 31, 2021 $ 0  
Weighted- Average Remaining Contractual Term, Outstanding   9 years 6 months