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Earnings Per Share (Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share) (Details) - Stock Options [Member] - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Number of shares 0 1,275,050 0 1,275,050
Minimum [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Range of exercise prices $ 0.00 $ 24.79 $ 0.00 $ 24.79
Maximum [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Range of exercise prices $ 0.00 $ 24.79 $ 0.00 $ 24.79