Investment in Unconsolidated Entities (Details 6) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Equity Method Investments
Equity investment	$ 2,353,339	$ 2,378,800
Japan \| Mitsubishi Estate Co., Ltd. \| Premium Outlets
Schedule of Equity Method Investments
Joint venture ownership percentage	40.00%
Equity investment	$ 229,800	229,800
South Korea \| Shinsegae International Co \| Premium Outlets
Schedule of Equity Method Investments
Joint venture ownership percentage	50.00%
Equity investment	$ 110,400	$ 104,500

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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+ References

No definition available.

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