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Net Income Per Common Share (Narrative) (Details)	3 Months Ended	9 Months Ended
Net Income Per Common Share (Narrative) (Details)	Sep. 30, 2012	Sep. 30, 2012
Net Income Per Common Share [Abstract]
Employee stock options excluded from calculations of diluted net income per share	534,940	534,940

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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