Related Party Transactions - Tax Protection Agreement (Details) $ in Millions		12 Months Ended
	Oct. 07, 2013 USD ($)	Dec. 31, 2013 property	Aug. 23, 2016
Q REIT Holding LLC
Related Party Transaction [Line Items]
Threshold to indemnify (as a percent)			10.00%
Affiliated entities
Related Party Transaction [Line Items]
Number of properties | property		4
Aggregate number of operating partnership units and common stock threshold during tax protection period (as a percent)	50.00%
Bottom dollar guarantee of aggregate indebtedness during tax protection period | $	$ 160.0