NONCONTROLLING INTEREST (Details) - Plan Name [Domain] $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015 USD ($) shares	Jun. 30, 2015 USD ($) shares	Dec. 31, 2014 USD ($)
Noncontrolling Interest [Line Items]
Noncontrolling Interest in Operating Partnerships \| $	$ 32,954	$ 32,954	$ 0
Common Limited Partnership units issued (shares)	5,700,000	5,700,000
SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest	5.80%	5.70%
Conversion rate to common shares	1
Noncontrolling interest, ownership percentage	95.00%	95.00%
Vornado [Member]
Noncontrolling Interest [Line Items]
SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest	5.40%
Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest in Operating Partnerships \| $	$ 32,954	$ 32,954
LTIP Unit [Member]
Noncontrolling Interest [Line Items]
Number of shares issued	433,040
Award vesting period	2 years

Conversion to Stock, Conversion Rate

No definition available.

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- Definition

Carrying amount of the equity interests owned by noncontrolling partners in an operating partnership included in the entity's consolidated financial statements.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Definition

The number of units of other ownership interests issued in a limited partnership or master limited partnership. Does not include limited or general partners' ownership interests.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 5

-Subparagraph (SAB TOPIC 4.F)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 946

-SubTopic 320

-Section S99

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611443-123010

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