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Share-Based Compensation Plans - Additional Information (Detail) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Jun. 14, 2023
Stock Options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock options awarded 0 0 0 0  
Unvested stock options forfeited 0 0 0 0  
Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares forfeited 0 0 0 10,924  
Restricted Stock | Key Employees          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares granted 0 0      
Restricted Stock | Non Employee Director          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares granted 19,887 26,116 68,592 76,686  
Shares vested     157,139    
Weighted average grant date value of shares granted $ 33.83 $ 25.13 $ 29.43 $ 25.57  
Vesting date     Jan. 13, 2023    
Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares forfeited 4,282 0 4,282 10,585  
Shares vested 0 0 61,652 47,633  
Restricted Stock Units | Key Employees          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of shares granted     0 0  
2023 Share Incentive Plan | Class A Common Shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares authorised to issue under share incentive plan         2,500,000