Dividends Declared and Paid - Dividend Information (Details) - $ / shares								3 Months Ended			6 Months Ended
	Jun. 30, 2016	May 31, 2016	Apr. 29, 2016	Mar. 31, 2016	Feb. 29, 2016	Jan. 29, 2016	Dec. 31, 2015	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Equity [Abstract]
Common share distribution amount (in dollars per share)	$ 0.11	$ 0.11	$ 0.11	$ 0.11	$ 0.1	$ 0.1	$ 0.08	$ 0.33	$ 0.31	$ 0.3	$ 0.64	$ 0.6
LTIP unit distribution amount (in dollars per share)	$ 0.11	$ 0.11	$ 0.11	$ 0.11	$ 0.1	$ 0.1		$ 0.33	$ 0.31		$ 0.64	$ 0.6