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Consolidated Statements of Changes in Shareholders' Equity (unaudited) - USD ($) $ in Thousands | Common Stock | Surplus | Retained Earnings Cumulative Effect of Adoption of ASU | Retained Earnings | Accumulated Other Comprehensive Loss | Cumulative Effect of Adoption of ASU | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2022 | $ 189,261 | $ 4,215,712 |  | $ 1,347,042 | $ (677,088) |  | $ 5,074,927
Balance (in shares) at Dec. 31, 2022 | 75,704,563 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net Income (Loss) |  |  |  | 139,926 |  |  | 139,926
Other comprehensive income (loss), net of tax effects |  |  |  |  | 63,304 |  | 63,304
Total comprehensive income |  |  |  |  |  |  | 203,230
Cash dividends declared on common stock per share |  |  |  | (37,912) |  |  | (37,912)
Cash dividend equivalents paid on restricted stock units |  |  |  | (420) |  |  | (420)
Stock options exercised | $ 59 | 1,114 |  |  |  |  | 1,173
Stock options exercised (in shares) | 23,516 |  |  |  |  |  |
Restricted stock awards (forfeits) | $ (5) | 5 |  |  |  |  |
Restricted stock awards (forfeits) (in shares) | (2,233) |  |  |  |  |  |
Stock issued pursuant to restricted stock units | $ 444 | (444) |  |  |  |  |
Stock issued pursuant to restricted stock units (in shares) | 177,708 |  |  |  |  |  |
Common stock repurchased - equity plans | $ (110) | (3,306) |  |  |  |  | (3,416)
Common stock repurchased - equity plans (in shares) | (43,889) |  |  |  |  |  |
Share-based compensation expense |  | 11,422 |  |  |  |  | 11,422
Balance at Mar. 31, 2023 | $ 189,649 | 4,224,503 |  | 1,448,636 | (613,784) |  | 5,249,004
Balance (in shares) at Mar. 31, 2023 | 75,859,665 |  |  |  |  |  |
Balance at Dec. 31, 2022 | $ 189,261 | 4,215,712 |  | 1,347,042 | (677,088) |  | 5,074,927
Balance (in shares) at Dec. 31, 2022 | 75,704,563 |  |  |  |  |  |
Balance at Dec. 31, 2023 | $ 190,055 | 4,240,413 |  | 1,685,166 | (582,536) |  | $ 5,533,098
Balance (in shares) at Dec. 31, 2023 | 76,022,039 |  |  |  |  |  | 76,022,039
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net Income (Loss) |  |  |  | 115,056 |  |  | $ 115,056
Other comprehensive income (loss), net of tax effects |  |  |  |  | (40,458) |  | (40,458)
Total comprehensive income |  |  |  |  |  |  | 74,598
Cash dividends declared on common stock per share |  |  |  | (39,598) |  |  | (39,598)
Cash dividend equivalents paid on restricted stock units |  |  |  | (1,163) |  |  | (1,163)
Stock options exercised | $ 16 | 375 |  |  |  |  | 391
Stock options exercised (in shares) | 6,349 |  |  |  |  |  |
Restricted stock awards (forfeits) | $ (1) | 1 |  |  |  |  |
Restricted stock awards (forfeits) (in shares) | (64) |  |  |  |  |  |
Stock issued pursuant to restricted stock units | $ 861 | (861) |  |  |  |  |
Stock issued pursuant to restricted stock units (in shares) | 344,376 |  |  |  |  |  |
Common stock repurchased - buyback plan | $ (250) | (7,735) |  |  |  |  | (7,985)
Common stock repurchased - buyback plan (in shares) | (100,000) |  |  |  |  |  |
Common stock repurchased - equity plans | $ (238) | (7,715) |  |  |  |  | (7,953)
Common stock repurchased - equity plans (in shares) | (95,537) |  |  |  |  |  |
Share-based compensation expense |  | 5,867 |  |  |  |  | 5,867
Balance (Accounting Standards Update 2023-02) at Mar. 31, 2024 |  |  | $ (10,246) |  |  | $ (10,246) |
Balance at Mar. 31, 2024 | $ 190,443 | $ 4,230,345 |  | $ 1,749,215 | $ (622,994) |  | $ 5,547,009
Balance (in shares) at Mar. 31, 2024 | 76,177,163 |  |  |  |  |  | 76,177,163

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