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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.

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- 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 + Details
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