Real Estate Investments - Additional Information (Detail) (USD $)	3 Months Ended			0 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Jan. 17, 2014 Liberty Apartments [Member]	Mar. 31, 2014 Liberty Apartments [Member]	May 01, 2014 Subsequent Event [Member] Virginia [Member]	Apr. 16, 2014 Subsequent Event [Member] Virginia [Member]
Real Estate Properties [Line Items]
Acquisition, total consideration				$ 26,700,000
Acquisition, common units issued				695,652
Acquisition, assumption of debt				17,000,000
Acquisition, cash paid to affiliates of the predecessor				3,000,000
Fair value adjustment to the assumed debt				1,500,000
Outstanding principal balance of the assumed debt				18,500,000	16,966,000
Additions under the liberty apartment loan				2,400,000
Rental revenues	15,193,000	13,398,000			100,000
Net income	1,465,000				(500,000)
Land purchased	$ 44,893,000		$ 41,313,000			$ 300,000	$ 7,400,000