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Income Taxes (Narrative) (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Income Taxes [Abstract]        
U.S. statutory rate 35.00% 35.00% 35.00% 35.00%
Tax holiday impact 1.40% 1.30% 1.40% 1.40%