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Dispositions (Details) ft² in Thousands, $ in Thousands					3 Months Ended		6 Months Ended
	May 31, 2016 USD ($)	Apr. 13, 2016 USD ($) ft²	Nov. 19, 2015 USD ($) ft²	Jun. 30, 2015 USD ($) ft²	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($) ft²	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($) ft²
Discontinued Operations:
Loss on early extinguishment of debt, net							$ (8,453)	$ (636)
Gain (loss) on sale or write down of assets, net					$ 10,915	$ (4,671)	445,371	$ (3,736)
Great Northern Mall
Discontinued Operations:
Property area (in square feet) | ft²				895		895		895
Great Northern Mall | Great Northern Mall
Discontinued Operations:
Loss on early extinguishment of debt, net				$ (1,627)
Panorama Mall
Discontinued Operations:
Property area (in square feet) | ft²			312
Proceeds from sale			$ 98,000
Gain on disposal			$ 73,726
Capitola Mall
Discontinued Operations:
Property area (in square feet) | ft²		586
Proceeds from sale		$ 93,000
Gain (loss) on sale or write down of assets, net		$ 24,897			24,897		24,897
Mervyn's
Discontinued Operations:
Proceeds from sale	$ 3,200
Gain (loss) on sale or write down of assets, net	$ (3,058)				$ (3,058)		$ (3,058)

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2443-110228

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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