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Fair Value Measurements - Narrative (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Gulf Properties
Fair Value, Assets and Liabilities Measured on Recurring Basis
Fair value inputs, probability of default	3.59%	3.71%

X

- Definition

Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]

+ References

No definition available.

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- Definition

Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 820



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (bbb)



-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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