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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Surplus | Accumulated Other Comprehensive Income (Loss) | Undivided Profits
--- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2022 | $ 3,269,362 | $ 1,270 | $ 2,530,066 | $ (517,560) | $ 1,255,586
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Comprehensive income (loss) | 92,468 |  |  | 46,879 | 45,589
Stock issued for employee stock purchase plan | 833 |  | 833 |  |
Stock-based compensation plans, net | 2,693 | 3 | 2,690 |  |
Dividends on common stock | (25,455) |  |  |  | (25,455)
Ending balance at Mar. 31, 2023 | 3,339,901 | 1,273 | 2,533,589 | (470,681) | 1,275,720
Beginning balance at Dec. 31, 2023 | 3,426,488 | 1,252 | 2,499,930 | (404,375) | 1,329,681
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Comprehensive income (loss) | 35,230 |  |  | (3,641) | 38,871
Stock issued for employee stock purchase plan | 970 |  | 970 |  |
Stock-based compensation plans, net | 2,775 | 2 | 2,773 |  |
Dividends on common stock | (26,337) |  |  |  | (26,337)
Ending balance at Mar. 31, 2024 | $ 3,439,126 | $ 1,254 | $ 2,503,673 | $ (408,016) | $ 1,342,215

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