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ACQUISITIONS AND DISPOSITIONS - Summary of Acquisition Activity (Details) $ in Thousands, ft² in Millions		1 Months Ended
	Oct. 12, 2016 USD ($)	Sep. 30, 2016 USD ($) ft²	Dec. 31, 2015 USD ($)
Business Acquisition [Line Items]
Variable Interest Entity, Classification of Carrying Amount, Assets			$ 29,465
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities			$ 2,500
Area of real estate property (in sq ft) | ft²		14.8
Hudson Mall
Business Acquisition [Line Items]
Property acquisition price		$ 44,000
Bruckner Commons | Subsequent Event
Business Acquisition [Line Items]
Property acquisition price	$ 32,000

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Area of a real estate property.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5710-111685

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5710-111685

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