The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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- 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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Segment Information Segment Information Textual (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($) property segment	Jun. 22, 2015	Dec. 31, 2014 USD ($) property
Segment Reporting Information [Line Items]
Number of Reportable Segments \| segment	7
Number of Properties	9
Investment in Real Estate Ventures, at equity \| $	$ 201,034		$ 225,004
Coppell Associates [Member]
Segment Reporting Information [Line Items]
Investment in Real Estate Ventures, at equity \| $	$ (1,200)		$ (1,200)
Durham, NC [Member]
Segment Reporting Information [Line Items]
Number of Properties	1
1000 Atrium Way and Libertyview [Member]
Segment Reporting Information [Line Items]
Number of Properties			2
Broadmoor Austin Associates [Member]
Segment Reporting Information [Line Items]
Ownership percentage		50.00%