Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

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Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Income Taxes (Textual) [Abstract]    
Effective Tax rate 53.00% 11.20%
Income tax expense $ (3,845) $ 1,533