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Investments in Real Estate - Additional Information (Detail) $ in Thousands		6 Months Ended
	May. 01, 2015 USD ($) Property	Jun. 30, 2015 USD ($) Property	Jun. 30, 2014 USD ($)
Real Estate Properties [Line Items]
Number of multifamily property owned | Property		31
Number of units located with multifamily properties | Property		9,055
Number of multifamily property acquired | Property	236
Acquisition of real estate properties	$ 25,250	$ 24,746	$ 97,913
Investments in real estate		$ 25,031
Real Estate Investment
Real Estate Properties [Line Items]
Investments in real estate	$ 25,250

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- Definition

Number Of Real Estate Properties Acquired

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The amount of property, plant, and equipment recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 805



-SubTopic 20



-Section 50



-Paragraph 1



-Subparagraph (c)



-URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 805



-SubTopic 10



-Section 55



-Paragraph 37



-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464

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The number of real estate properties owned as of the balance sheet date.

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The number of units in a real estate property owned as of the balance sheet date.

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The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 230



-SubTopic 10



-Section 45



-Paragraph 13



-Subparagraph (c)



-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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