Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Deferred Tax Assets and Liabilities) (Details)

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Income Taxes (Deferred Tax Assets and Liabilities) (Details)
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Income Tax Disclosure [Abstract]    
Effective tax rate (as a percent) 33.00% 0.00%