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Consolidated Condensed Statements Of Changes In Stockholders' Equity (USD $) In Thousands | Preferred Stock [Member] | Common Stock [Member] | Retained Earnings [Member] | Treasury Stock At Cost [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Comprehensive Income (Loss) [Member] | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2009 | $ 96,483 | $ 306,569 | $ 423,872 | $ (125,321) | $ 15,661 |  |
Net Income |  |  | 61,522 |  |  | 61,522 | 61,522
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |
Unrealized net holding gain (loss) on cash flow hedge, net of income taxes |  |  |  |  | (277) | (277) |
Unrealized net holding gain (loss) on securities available-for-sale, net of income taxes |  |  |  |  | (3,030) | (3,030) |
Total comprehensive income |  |  |  |  |  | 58,215 | 58,200
Cash dividends on common stock at $2.82 per share |  |  | (42,668) |  |  |  |
Cash payment for fractional shares in dividend reinvestment plan |  | (2) |  |  |  |  |
Reissuance of common stock from treasury shares held for warrants issued |  | (852) | (9,495) | 37,915 |  |  |
Accretion of discount on preferred stock | 605 |  | (605) |  |  |  |
Preferred stock dividends |  |  | (3,750) |  |  |  |
Balance at Sep. 30, 2010 | 97,088 | 305,715 | 428,876 | (87,406) | 12,354 |  |
Balance at Dec. 31, 2010 | 97,290 | 305,677 | 422,458 | (77,733) | (1,868) |  | 745,824
Net Income |  |  | 60,004 |  |  | 60,004 | 60,004
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |
Unrealized net holding gain (loss) on cash flow hedge, net of income taxes |  |  |  |  | 348 | 348 |
Unrealized net holding gain (loss) on securities available-for-sale, net of income taxes |  |  |  |  | 644 | 644 |
Total comprehensive income |  |  |  |  |  | 60,996 | 61,000
Cash dividends on common stock at $2.82 per share |  |  | (43,425) |  |  |  |
Cash payment for fractional shares in dividend reinvestment plan |  | (2) |  |  |  |  |
Common stock warrants cancelled |  | (66) | 66 |  |  |  |
Accretion of discount on preferred stock | 642 |  | (642) |  |  |  |
Preferred stock dividends |  |  | (3,750) |  |  |  |
Balance at Sep. 30, 2011 | $ 97,932 | $ 305,609 | $ 434,711 | $ (77,733) | $ (876) |  | $ 759,643

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