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Consolidated Condensed Statements Of Changes In Stockholders' Equity (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified | 9 Months Ended
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Sep. 30, 2012 | Sep. 30, 2011
Statement of Stockholders' Equity [Abstract] |  |
Change in pension plan assets and benefit obligations, Tax effect | $ 222 |
Unrealized net holding gain (loss) on cash flow hedge, tax | 216 | 187
Unrealized net holding gain (loss) on securities available-for-sale, tax | $ 790 | $ 345
Cash dividends on common stock per share | $ 2.82 | $ 2.82

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