Earnings Per Common Share - Schedule of Antidilutive Shares Excluded from the Computation of Diluted Earnings Per Share (Details) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	1,256,249	2,611,645	2,302,322
Stock options, performance and restricted shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	897,800	461,663	337,145
Assumed conversion of exchangeable note hedges
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total	358,449	2,149,982	1,965,177