Annual report pursuant to Section 13 and 15(d)

Share-based Compensation - Summary of Stock Options Outstanding under Plans (Detail)

v3.22.4
Share-based Compensation - Summary of Stock Options Outstanding under Plans (Detail) - 2013 and 2021 Plan - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options Outstanding, Number of Shares (shares) 111,000 115,938 125,938 156,438
Options Outstanding, Intrinsic Value $ 539      
Options Outstanding, Weighted-Average Exercise Price Per Share (in USD per share) $ 19.89 $ 19.58 $ 19.59 $ 18.84
Options Outstanding, Weighted-Average Remaining Contractual Life 2 years 3 months 18 days      
Options Exercisable, Number of Shares (shares) 111,000 115,938 125,938  
Options Exercisable, Intrinsic Value $ 539      
Options Exercisable, Weighted-Average Exercise Price Per Share (in USD per share) $ 19.89 $ 19.58 $ 19.59  
Options Exercisable, Weighted-Average Remaining Contractual Life 2 years 3 months 18 days      
Intrinsic value of stock options outstanding (in USD per share) $ 24.75      
$15.00 to $19.99        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options Outstanding, Number of Shares (shares) 50,000      
Options Outstanding, Intrinsic Value $ 416      
Options Outstanding, Weighted-Average Exercise Price Per Share (in USD per share) $ 16.43      
Options Outstanding, Weighted-Average Remaining Contractual Life 1 year 7 months 28 days      
Options Exercisable, Number of Shares (shares) 50,000      
Options Exercisable, Intrinsic Value $ 416      
Options Exercisable, Weighted-Average Exercise Price Per Share (in USD per share) $ 16.43      
Options Exercisable, Weighted-Average Remaining Contractual Life 1 year 7 months 28 days      
$20.00 to $24.83        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options Outstanding, Number of Shares (shares) 61,000      
Options Outstanding, Intrinsic Value $ 123      
Options Outstanding, Weighted-Average Exercise Price Per Share (in USD per share) $ 22.73      
Options Outstanding, Weighted-Average Remaining Contractual Life 2 years 10 months 2 days      
Options Exercisable, Number of Shares (shares) 61,000      
Options Exercisable, Intrinsic Value $ 123      
Options Exercisable, Weighted-Average Exercise Price Per Share (in USD per share) $ 22.73      
Options Exercisable, Weighted-Average Remaining Contractual Life 2 years 10 months 2 days