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Net Income Per Common Share (Details) - shares
1 Months Ended 3 Months Ended 9 Months Ended
Feb. 28, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Net Income Per Common Share [Line Items]          
Weighted average number of diluted shares outstanding adjustment (in shares)   155,482 103,936 159,807 236,930
Share-based Awards          
Net Income Per Common Share [Line Items]          
Antidilutive securities excluded from computation of EPS   501,242 525,738    
Stock Options          
Net Income Per Common Share [Line Items]          
Antidilutive securities excluded from computation of EPS       508,812 488,401
Options, granted (in shares) 144,000        
Restricted Stock Units          
Net Income Per Common Share [Line Items]          
Other than options, granted (in shares) 105,669        
Performance Share Awards          
Net Income Per Common Share [Line Items]          
Other than options, granted (in shares) 97,515        
Performance period       3 years  
Minimum range of target award of stock plan       0.00%  
Maximum range of target award of stock plan       250.00%