This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
-Topic 942
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Investment in Unconsolidated Joint Ventures (Additional Information) (Details) - USD ($) $ in Thousands		3 Months Ended
	Feb. 28, 2017	Mar. 31, 2017	Mar. 31, 2016
Investment [Line Items]
Loss from unconsolidated joint ventures		$ (581)	$ (1,834)
111 West Rio Building \| American Airlines
Investment [Line Items]
Ownership percentage interest	25.40%
Net purchase price	$ 19,600
Loss from unconsolidated joint ventures	$ 3,500