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Earnings Per Common Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Footnote) (Details) - shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]      
RSUs vested (in shares)   134,914 66,639
Restricted stock units      
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]      
RSUs vested (in shares) 0 0  
Common shares issued (in shares) 1,143,000 0  
Weighted average common shares outstanding — diluted (in shares) 816,000