Summary of Significant Accounting Policies - Dividends and Distributions (Details) - $ / shares		3 Months Ended		6 Months Ended
	Jun. 12, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Accounting Policies [Abstract]
Dividends and distributions declared per common share and OP Unit (in dollars per share)	$ 0.23	$ 0.230	$ 0.225	$ 0.455	$ 0.450
Cash dividend distributed to common shareholders (in dollars per share)		0.23
Increase per common share		$ 0.005