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Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Consolidated Statements of Comprehensive Income |  |  |  |
Net unrealized holding gains on securities available for sale arising during period, tax effects | $ 4,354 | $ 29,866 | $ 395 | $ 31,877
Reclassification adjustment for gains on securities available for sale included in net income, tax effects | (497) | (505) | (907) | (1,001)
Reclassification adjustment for impairment charges on available for sale securities included in net income, tax effects | $ 78 | $ 58 | $ 143 | $ 145

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