Acquisition of Noncontrolled Entities - Additional Information (Detail) (USD $)	12 Months Ended			1 Months Ended		1 Months Ended
	Dec. 31, 2013	May 31, 2013	May 31, 2013 Pro Forma	May 31, 2013 Bermuda Crossroads	May 31, 2013 Bermuda Crossroads Predecessor	May 31, 2013 Smith's Landing	May 31, 2013 Smith's Landing Predecessor	May 31, 2013 Smith's Landing Intangible Assets
Business Acquisition [Line Items]
Percentage of operating partnership acquired		100.00%
Ownership percentage of acquired non-controlled entities				50.00%	50.00%	60.00%	40.00%
Acquitions, Consideration in the form of cash and common units				$ 3,200,000		$ 7,500,000
Acquisition, below-market ground lease	1,638,000			1,750,000				1,900,000
Acquisition, in-place leases	4,369,000							500,000
Fair value adjustment to assumed secured debt				200,000
Acquisition-date fair values of equity interests				3,200,000		5,000,000
Gain loss from remeasurement of equity method investment		9,500,000	9,500,000
Rental revenues from acquisition date	3,800,000
Net income from acquisition date	$ 200,000