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Shareholders' Equity and Earnings Per Common Share - Schedule of Reconciliation of Basic and Diluted Net Income Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Earnings Per Share Reconciliation [Abstract]    
Net income $ 16,875 $ 15,590
Weighted average shares outstanding (in shares) 20,575 20,943
Stock units for deferred compensation plan for non-employee directors (in shares) 179 177
Performance share units (in shares) 25 28
Effect of stock options (in shares) 1 2
Weighted average shares outstanding for calculation of diluted earnings per share (in shares) 20,780 21,150
Net income per common share    
Basic (in dollars per share) $ 0.82 $ 0.74
Diluted (in dollars per share) $ 0.81 $ 0.74