v3.26.1
Consolidated Statements of Shareholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Common Stock
Surplus
Retained Earnings
Other Comprehensive Income (Loss)
Treasury Stock
Total
Balance at Dec. 31, 2024 $ 96,617 $ 159,333 $ 3,356,177 $ (379,054) $ (436,366) $ 2,796,707
Balance (in shares) at Dec. 31, 2024 96,617          
Increase (decrease) in shareholders' equity            
Net income     197,034     197,034
Dividends:            
Dividends cash     (43,550)     (43,550)
Purchase of treasury stock         (4,546) (4,546)
Exercise of stock options $ 23 770       793
Exercise of stock options (in shares) 23          
Stock compensation expense recognized in earnings   66       66
Other comprehensive (loss) income, net of tax:            
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments       75,565   75,565
Balance at Jun. 30, 2025 $ 96,640 160,169 3,509,661 (303,489) (440,912) 3,022,069
Balance (in shares) at Jun. 30, 2025 96,640          
Balance at Mar. 31, 2025 $ 96,626 159,712 3,409,519 (334,412) (436,366) 2,895,079
Balance (in shares) at Mar. 31, 2025 96,626          
Increase (decrease) in shareholders' equity            
Net income     100,142     100,142
Dividends:            
Purchase of treasury stock         (4,546) (4,546)
Exercise of stock options $ 14 436       450
Exercise of stock options (in shares) 14          
Stock compensation expense recognized in earnings   21       21
Other comprehensive (loss) income, net of tax:            
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments       30,923   30,923
Balance at Jun. 30, 2025 $ 96,640 160,169 3,509,661 (303,489) (440,912) 3,022,069
Balance (in shares) at Jun. 30, 2025 96,640          
Balance at Dec. 31, 2025 $ 96,659 160,861 3,681,408 (246,316) (440,974) 3,251,638
Balance (in shares) at Dec. 31, 2025 96,659          
Increase (decrease) in shareholders' equity            
Net income     197,998     197,998
Dividends:            
Dividends cash     (45,390)     (45,390)
Purchase of treasury stock         (157) (157)
Exercise of stock options $ 21 725       746
Exercise of stock options (in shares) 21          
Stock compensation expense recognized in earnings   33       33
Other comprehensive (loss) income, net of tax:            
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments       (29,564)   (29,564)
Balance at Jun. 30, 2026 $ 96,680 161,619 3,834,016 (275,880) (441,131) 3,375,304
Balance (in shares) at Jun. 30, 2026 96,680          
Balance at Mar. 31, 2026 $ 96,671 161,302 3,738,204 (267,102) (441,034) 3,288,041
Balance (in shares) at Mar. 31, 2026 96,671          
Increase (decrease) in shareholders' equity            
Net income     95,812     95,812
Dividends:            
Purchase of treasury stock         (97) (97)
Exercise of stock options $ 9 302       311
Exercise of stock options (in shares) 9          
Stock compensation expense recognized in earnings   15       15
Other comprehensive (loss) income, net of tax:            
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments       (8,778)   (8,778)
Balance at Jun. 30, 2026 $ 96,680 $ 161,619 $ 3,834,016 $ (275,880) $ (441,131) $ 3,375,304
Balance (in shares) at Jun. 30, 2026 96,680