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Stock-Based Compensation Plans - Stock-Based Compensation Expense (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Total stock-based compensation $ 8,099 $ 7,424
Employees [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Total stock-based compensation 7,642 7,103
Non-Employee Directors [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Total stock-based compensation $ 457 $ 321