Earnings Per Common Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Footnote) (Details) - RSUs and LTIP Units - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
RSUs vested (in shares)	0
Common shares issued (in shares)	1,165,000	1,754,000
Weighted average common shares outstanding — diluted (in shares)	1,103,000	1,682,000