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Net Earnings (Loss) Per Common Share Textuals (Details) (Stock Options, USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Jun. 30, 2013
Stock Options
         
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive securities excluded from computation of earnings per share, amount 3,607,069 4,375,829 3,104,623 4,406,045  
Antidilutive share granted, average exercise price $ 41.87   $ 41.87   $ 41.87
Fair value stock price $ 15.24 $ 15.88 $ 17.55 $ 15.04