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Income Taxes (Details) | 9 Months Ended
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Sep. 30, 2012 | Sep. 30, 2011
Income Taxes (Textual) [Abstract] |  |
Estimated effective annual tax rate | 39.30% | (9.00%)

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- Definition Estimated effective annual tax rate. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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