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Income Taxes (Details) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Income Taxes (Textual) [Abstract] |  |  |  |
Effective income tax rate continuing operations | 27.30% | 32.00% | 16.50% | 32.00%
Amount of error corrections and prior period adjustments |  |  | $ 371,000 |
Effective income taxes percentage before prior period adjustment |  |  | 30.60% | 32.00%

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