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Consolidated Statements of Comprehensive Income (Parenthetical) (Unaudited) (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 [Abstract] |  |  |  |
Change in fair value of interest rate swap agreement designated as a cash flow hedge, tax | $ 73 | $ 78 | $ 39 | $ 42
Unrealized gains arising during the period, net of tax | (7) |  | (7) | (32)
Reclassification adjustment for losses included in net income, tax |  |  |  | (139)
Unrealized gains arising during the period, tax | (2,455) | (3,881) | (1,809) | (4,556)
Reclassification adjustment for gains included in net income on other-than-temporarily impaired securities available for sale, tax | $ 256 |  | $ 454 | $ 26

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