XML 137 R114.htm IDEA: XBRL DOCUMENT v3.8.0.1

Segment Information - Net Operating Income of Company's Reportable Segments (Parenthetical) (Details) - property	Dec. 31, 2017	Dec. 31, 2016	Jun. 22, 2015
Segment Reporting Information [Line Items]
Number of Properties	93
Austin, Texas [Member]
Segment Reporting Information [Line Items]
Number of Properties		7
Broadmoor Austin Associates [Member]
Segment Reporting Information [Line Items]
Percentage of ownership interests			50.00%

X

- Definition

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

+ References

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=79982066&loc=d3e1392-128463

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

X

- Definition

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

+ References

No definition available.

+ 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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Namespace Prefix:
Data Type:	na
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X

- Details

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Namespace Prefix:
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Period Type: