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Summary of Activity of RSU and PSU Awards Under the 2019 Plan (Parenthetical) (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
PSU      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share units granted     0
2019 Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share units granted 207,790 384,428 309,192
Incremental fair value expense $ 577    
2019 Plan | PSU      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Grant date fair value $ 55.85 $ 22.06  
Vesting period 3 years    
2019 Plan | PSU | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of shares on settlement date grantee may receive if certain criteria is met 0.00%    
2019 Plan | PSU | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of shares on settlement date grantee may receive if certain criteria is met 200.00%