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v3.23.3

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, 2021 | $ 96,351 | $ 152,144 | $ 2,470,710 | $ (31,980) | $ (378,744) | $ 2,308,481
Balance (in shares) at Dec. 31, 2021 | 96,351 |  |  |  |  |
Increase (decrease) in shareholders' equity |  |  |  |  |  |
Net Income (Loss) |  |  | 194,820 |  |  | 194,820
Dividends: |  |  |  |  |  |
Cash/Payable |  |  | (75,375) |  |  | (75,375)
Purchase of treasury stock |  |  |  |  | (51,939) | (51,939)
Exercise of stock options | $ 34 | 698 |  |  |  | 732
Exercise of stock options (in shares) | 34 |  |  |  |  |
Stock compensation expense recognized in earnings |  | 347 |  |  |  | 347
Other comprehensive loss, net of tax: |  |  |  |  |  |
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments |  |  |  | (422,792) |  | (422,792)
Balance at Sep. 30, 2022 | $ 96,385 | 153,189 | 2,590,155 | (454,772) | (430,683) | 1,954,274
Balance (in shares) at Sep. 30, 2022 | 96,385 |  |  |  |  |
Balance at Jun. 30, 2022 | $ 96,368 | 152,743 | 2,544,148 | (276,735) | (419,293) | 2,097,231
Balance (in shares) at Jun. 30, 2022 | 96,368 |  |  |  |  |
Increase (decrease) in shareholders' equity |  |  |  |  |  |
Net Income (Loss) |  |  | 83,356 |  |  | 83,356
Dividends: |  |  |  |  |  |
Cash/Payable |  |  | (37,349) |  |  | (37,349)
Purchase of treasury stock |  |  |  |  | (11,390) | (11,390)
Exercise of stock options | $ 17 | 328 |  |  |  | 345
Exercise of stock options (in shares) | 17 |  |  |  |  |
Stock compensation expense recognized in earnings |  | 118 |  |  |  | 118
Other comprehensive loss, net of tax: |  |  |  |  |  |
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments |  |  |  | (178,037) |  | (178,037)
Balance at Sep. 30, 2022 | $ 96,385 | 153,189 | 2,590,155 | (454,772) | (430,683) | 1,954,274
Balance (in shares) at Sep. 30, 2022 | 96,385 |  |  |  |  |
Balance at Dec. 31, 2022 | $ 96,420 | 154,061 | 2,695,567 | (470,497) | (430,792) | 2,044,759
Balance (in shares) at Dec. 31, 2022 | 96,420 |  |  |  |  |
Increase (decrease) in shareholders' equity |  |  |  |  |  |
Net Income (Loss) |  |  | 305,392 |  |  | 305,392
Dividends: |  |  |  |  |  |
Cash/Payable |  |  | (78,247) |  |  | (78,247)
Purchase of treasury stock |  |  |  |  | (4,487) | (4,487)
Exercise of stock options | $ 24 | 630 |  |  |  | 654
Exercise of stock options (in shares) | 24 |  |  |  |  |
Stock compensation expense recognized in earnings |  | 255 |  |  |  | 255
Other comprehensive loss, net of tax: |  |  |  |  |  |
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments |  |  |  | (74,715) |  | (74,715)
Balance at Sep. 30, 2023 | $ 96,444 | 154,946 | 2,922,712 | (545,212) | (435,279) | 2,193,611
Balance (in shares) at Sep. 30, 2023 | 96,444 |  |  |  |  |
Balance at Jun. 30, 2023 | $ 96,432 | 154,522 | 2,858,544 | (482,312) | (435,195) | 2,191,991
Balance (in shares) at Jun. 30, 2023 | 96,432 |  |  |  |  |
Increase (decrease) in shareholders' equity |  |  |  |  |  |
Net Income (Loss) |  |  | 103,264 |  |  | 103,264
Dividends: |  |  |  |  |  |
Cash/Payable |  |  | (39,096) |  |  | (39,096)
Purchase of treasury stock |  |  |  |  | (84) | (84)
Exercise of stock options | $ 12 | 348 |  |  |  | 360
Exercise of stock options (in shares) | 12 |  |  |  |  |
Stock compensation expense recognized in earnings |  | 76 |  |  |  | 76
Other comprehensive loss, net of tax: |  |  |  |  |  |
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments |  |  |  | (62,900) |  | (62,900)
Balance at Sep. 30, 2023 | $ 96,444 | $ 154,946 | $ 2,922,712 | $ (545,212) | $ (435,279) | $ 2,193,611
Balance (in shares) at Sep. 30, 2023 | 96,444 |  |  |  |  |

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