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Real Estate - Real Estate (Detail) - USD ($)
$ in Thousands

Dec. 31, 2016

Dec. 31, 2015

Dec. 31, 2014

Dec. 31, 2013

Real Estate Properties [Line Items]

Carrying value

$ 293,003

$ 618,844

Accumulated depreciation

0

(32,129)

$ (31,377)

$ (28,066)

Net carrying value

293,003

586,715

Entitled, developed and under development projects

Real Estate Properties [Line Items]

Carrying value

263,859

352,141

Accumulated depreciation

0

Net carrying value

263,859

352,141

Undeveloped land (includes land in entitlement)

Real Estate Properties [Line Items]

Carrying value

29,144

98,181

Accumulated depreciation

0

Net carrying value

29,144

98,181

Radisson Hotel & Suites

Real Estate Properties [Line Items]

Carrying value

0

62,889

Accumulated depreciation

0

(29,268)

Net carrying value

^[1]

0

33,621

Eleven

Real Estate Properties [Line Items]

Carrying value

0

53,896

Accumulated depreciation

0

(2,861)

Net carrying value

^[1]

0

51,035

Dillon

Real Estate Properties [Line Items]

Carrying value

0

19,987

Accumulated depreciation

0

Net carrying value

^[1]

0

19,987

Music Row

Real Estate Properties [Line Items]

Carrying value

0

9,947

Accumulated depreciation

0

Net carrying value

^[1]

0

9,947

Downtown Edge

Real Estate Properties [Line Items]

Carrying value

0

12,706

Accumulated depreciation

0

Net carrying value

^[1]

0

12,706

West Austin

Real Estate Properties [Line Items]

Carrying value

0

9,097

Accumulated depreciation

0

Net carrying value

^[2]

$ 0

$ 9,097

[1]	Sold in 2016.
[2]	Classified as assets held for sale at year-end 2016.

X

- Definition

Amount of accumulated depreciation pertaining to real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28.FN4)
-URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section S99
-Paragraph 6
-Subparagraph (SX 210.5-04.(c) Schedule III)
-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

+ Details

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X

- Definition

Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

+ 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 210.7-03.1(d))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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X

- Definition

Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

+ 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 210.7-03.1(d))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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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.

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