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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Stock options granted 0     0  
Additional share-based compensation   $ 1,926      
Share based compensation expense $ 1,601   $ 2,627 $ 10,348 $ 7,149
Stock Options [Member]          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Vesting period for stock options and restricted stock       3 years  
Contractual terms       10 years  
Stock options granted 0     0  
Number of options vested.   137,000      
Number of non-vested options forfeited.   35,000      
Stock-based compensation plans, number of additional shares authorized for future grants       964,000  
Stock price $ 34.44     $ 34.44  
Restricted Stock [Member] | Minimum [Member] | Employee [Member]          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Vesting period for stock options and restricted stock       3 years  
Restricted Stock [Member] | Minimum [Member] | Director [Member]          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Vesting period for stock options and restricted stock       1 year  
Restricted Stock [Member] | Maximum [Member] | Employee [Member]          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Vesting period for stock options and restricted stock       4 years  
Restricted Stock [Member] | Maximum [Member] | Director [Member]          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Vesting period for stock options and restricted stock       3 years  
Restricted Stock Units [Member]          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Vesting period for stock options and restricted stock       3 years  
Stock options granted 0     0  
Number of options vested.   30,000      
Number of non-vested options forfeited.   15,000      
Fair value       $ 1,050  
Performance Restricted Stock Units [Member]          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Vesting period for stock options and restricted stock       3 years  
Stock options granted 0     0  
Number of options vested.   82,000      
Number of non-vested options forfeited.   42,000      
Stock cancelled and reissued   21,000   21,000  
Stock price $ 0   $ 16.49 $ 0 $ 16.49
Fair value       $ 2,886  
Separation Agreement [Member]          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share based compensation expense   $ 3,990