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Net Income Per Share (Narative) (Details) (USD $)
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Equity Option [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 20,000 64,000
Antidilutive Shares Outstanding Weighted Average Exercise Price $ 15.73 $ 12.05
Restricted Stock [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 663,750 635,850