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v3.10.0.1

Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Preferred Stock | Common Stock | Surplus | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Treasury Stock | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2015 |  | $ 95,866 | $ 167,980 | $ 1,683,600 | $ 2,167 | $ (284,110) | $ 1,665,503
Balance (in shares) at Dec. 31, 2015 | 95,866 |  |  |  |  |  |
Increase (decrease) in shareholders' equity |  |  |  |  |  |  |
Net Income |  |  |  | 133,932 |  |  | 133,932
Dividends: |  |  |  |  |  |  |
Cash ($.75, $.66 and $.60 per share) for the year ended December 31, 2018, 2017 and 2016, respectively) |  |  |  | (39,569) |  |  | (39,569)
Purchase of treasury stock (554,598, 4,870 and 349,029 shares) for the years ended December 31, 2018, 2017 and 2016, respectively) |  |  |  |  |  | (7,966) | (7,966)
Exercise of stock options |  | 44 | 505 |  |  |  | 549
Options exercised (in shares) | 44 |  |  |  |  |  |
Stock compensation expense recognized in earnings |  |  | 1,082 |  |  |  | 1,082
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments |  |  |  |  | (28,864) |  | (28,864)
Balance at Dec. 31, 2016 |  | 95,910 | 169,567 | 1,777,963 | (26,697) | (292,076) | 1,724,667
Balance (in shares) at Dec. 31, 2016 | 95,910 |  |  |  |  |  |
Increase (decrease) in shareholders' equity |  |  |  |  |  |  |
Net Income |  |  |  | 157,436 |  |  | 157,436
Dividends: |  |  |  |  |  |  |
Cash ($.75, $.66 and $.60 per share) for the year ended December 31, 2018, 2017 and 2016, respectively) |  |  |  | (43,594) |  |  | (43,594)
Purchase of treasury stock (554,598, 4,870 and 349,029 shares) for the years ended December 31, 2018, 2017 and 2016, respectively) |  |  |  |  |  | (187) | (187)
Exercise of stock options |  | 109 | 1,346 |  |  |  | 1,455
Options exercised (in shares) | 109 |  |  |  |  |  |
Stock compensation expense recognized in earnings |  |  | 903 |  |  |  | 903
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments |  |  |  |  | (1,700) |  | (1,700)
Balance at Dec. 31, 2017 |  | 96,019 | 171,816 | 1,891,805 | (28,397) | (292,263) | 1,838,980
Balance (in shares) at Dec. 31, 2017 | 96,019 |  |  |  |  |  |
Dividends: |  |  |  |  |  |  |
Cumulative adjustment for adoption of new accounting standards |  |  |  | 5,997 | (5,997) |  |
Net Income |  |  |  | 215,931 |  |  | 215,931
Cash ($.75, $.66 and $.60 per share) for the year ended December 31, 2018, 2017 and 2016, respectively) |  |  |  | (49,599) |  |  | (49,599)
Purchase of treasury stock (554,598, 4,870 and 349,029 shares) for the years ended December 31, 2018, 2017 and 2016, respectively) |  |  |  |  |  | (19,042) | (19,042)
Exercise of stock options |  | 85 | 1,437 |  |  |  | 1,522
Options exercised (in shares) | 85 |  |  |  |  |  |
Stock compensation expense recognized in earnings |  |  | 1,035 |  |  |  | 1,035
Repurchase of outstanding warrant |  |  | (29,005) |  |  |  | (29,005)
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |
Net change in unrealized gains and losses on available for sale securities, net of reclassification adjustments |  |  |  |  | (20,240) |  | (20,240)
Balance at Dec. 31, 2018 |  | $ 96,104 | $ 145,283 | $ 2,064,134 | $ (54,634) | $ (311,305) | $ 1,939,582
Balance (in shares) at Dec. 31, 2018 | 96,104 |  |  |  |  |  |

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