v3.3.1.900
Earnings per Common Share - Anti-dilutive Securities (Details) - shares
12 Months Ended 27 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Incremental common shares attributable to contingent conversion of preferred stock 10,840,617     10,840,617
Increase in incremental common shares attributable to contingent conversion of preferred stock       195,456
Share options        
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 0 17,293 0