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Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Consolidated Statements of Comprehensive Income |  |  |  |
Net unrealized holding gains on securities available for sale arising during period, tax effects | $ 10,897 | $ 7,125 | $ 11,292 | $ 39,003
Reclassification adjustment for gains on securities available for sale included in net income, tax effects | (11,527) | (2,306) | (12,434) | (3,307)
Reclassification adjustment for impairment charges on available for sale securities included in net income, tax effects | $ 84 | $ 100 | $ 226 | $ 245

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