Organization and Basis of Presentation and Consolidation - Summary of Consideration Paid and Preliminary Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) (USD $)	12 Months Ended	1 Months Ended
	Dec. 31, 2013	Nov. 30, 2012 PSF Entities [Member]
Business Acquisition [Line Items]
Investment property	$ 59,487,727	$ 20,769,328
Tenant and other receivables and other assets		1,209,811
Other lease intangibles		3,250,840
Mortgage debt		(14,004,098)
Accounts payable, accrued expenses and other liabilities		(211,997)
Above/(below) market leases		(3,220,166)
Fair value of net assets acquired	70,940,873	7,793,718
Estimated consideration paid with common units	945,271	4,813,848
Estimated consideration paid with cash		2,979,870
Total consideration	$ 70,940,873	$ 7,793,718