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Investment in Unconsolidated Ventures - Additional Information (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($) Venture	Jun. 30, 2014 USD ($)
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated ventures	$ 10,136	$ 4,430
Distributions of return on investments and earnings	$ 7,049	$ 1,923
Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Number of ventures under ownership interest using equity method | Venture	16

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Distributions of return on investments and earnings.

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

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- Definition

The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.

+ 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 (b)



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

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