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Properties, Net (Details 2) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Properties
Projects in development or held for future development	$ 418,015	$ 403,494
Projects in development or held for future development
Properties
Projects in development or held for future development	418,015	403,494
Projects in development or held for future development | Land in development or held for future development
Properties
Projects in development or held for future development	239,141	240,825
Projects in development or held for future development | Construction in progress, excluding land
Properties
Projects in development or held for future development	$ 178,874	$ 162,669

X

- Definition

The current amount of expenditures for a real estate project that has not yet been completed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.10)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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X

- Definition

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.

+ References

No definition available.

+ Details

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X

- Details

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X

- Details

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X

- Details

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