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

Equity Based Awards - Summary of stock based compensation based on the awards granted (Detail)

v3.21.2
Equity Based Awards - Summary of stock based compensation based on the awards granted (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]            
Stock based compensation expense $ 1,777 $ 503 $ 2,971 $ 1,007 $ 2,569 $ 858
Stock Options            
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]            
Stock based compensation expense 1,188 503 2,382 1,007    
Restricted Stock Units            
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]            
Stock based compensation expense $ 589 $ 0 $ 589 $ 0