v2.4.0.8
Earnings per Common Share - Anti-dilutive Securities (Details) (Share Options [Member])
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Share Options [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive share options excluded from the calculation of diluted earnings per common share 1,611,272 2,082,608