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Stock-Based Compensation - Additional Information (Detail)
$ in Millions
3 Months Ended
Mar. 31, 2022
USD ($)
Installment
shares
Mar. 31, 2021
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation | $ $ 0.2 $ 0.4
Number of installments of restricted shares | Installment 3  
Restricted stock award vesting rights The directors’ restricted shares vest on the first anniversary of the grant date.  
Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation expense of restricted stock | $ $ 1.1 $ 2.2
2005 Executive Incentive Compensation Plan [Member] | Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Restricted stock shares granted | shares 0  
Non-Employee Directors' Restricted Stock Plan [Member] | Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Restricted stock shares granted | shares 0