Business and Organization - Additional Information (Detail)	3 Months Ended
Mar. 31, 2014 Parcels Property
Real Estate Properties [Line Items]
Options to acquire developable lands, number of parcels of developable land to be acquired	9
Interest acquired	100.00%
Number Of Units to be purchased under purchase agreement	197

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant