Earnings Per Share (Narrative) (Details)	3 Months Ended
Mar. 31, 2011
Earnings Per Share [Abstract]
Shares issued from the conversion of convertible securities	6,999,887

Number of shares issued during the period as a result of the conversion of convertible securities.

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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+ Details