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Stock-Based Compensation (Stock Options) - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Stock options exercisable contractual term 10 years    
Stock Options [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Recognized compensation expenses $ 884 $ 1,180 $ 870
Deferred tax benefits recognized   76 $ 22
Unrecognized compensation expense related to nonvested stock options $ 1,005 $ 1,889  
Recognition of remaining compensation expense over a weighted-average period 1 year 7 months 6 days    
Maximum [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Stock options maximum vesting period 5 years