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Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Earnings Per Share [Abstract]        
Net income $ 25,383 $ 27,405 $ 88,289 $ 87,849
Average Common Shares:        
Basic (weighted-average outstanding shares) (in shares) 12,029 11,977 12,013 11,965
Dilutive potential common shares from stock options (in shares) 65 64 62 70
Diluted (weighted-average outstanding shares) (in shares) 12,094 12,041 12,075 12,035
Basic earnings per share (in dollars per share) $ 2.11 $ 2.29 $ 7.35 $ 7.34
Diluted earnings per share (in dollars per share) $ 2.10 $ 2.28 $ 7.31 $ 7.30