Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Buildings And Improvements

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Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangible Liabilities

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Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Land

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Buildings and Improvements

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Liabilities

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Above-Below Market Debt

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Gross Leasable Area

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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.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to items of consideration transferred in connection with a business combination for which the initial accounting was incomplete.

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This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to financial liabilities assumed in connection with a business combination for which the initial accounting was incomplete.

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This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to intangibles acquired in connection with a business combination for which the initial accounting was incomplete.

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Amount of real estate acquired, at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.

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Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination.

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- Definition

Amount of the contractual principal due at the origination of the mortgage loan (face amount).

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The number of units in a real estate property owned as of the balance sheet date.

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ACQUISITION AND DISPOSITION OF REAL ESTATE AND PROPERTIES HELD FOR SALE - Acquisition (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2015 USD ($)	Sep. 30, 2015 USD ($) ft² residential_unit	May. 31, 2015	Apr. 30, 2015	Mar. 31, 2015	Dec. 31, 2014 USD ($)
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		695,168
Corporate Joint Venture
Business Acquisition [Line Items]
Percentage of interests acquired	10.00%
Purchase Price	$ 4,200
Individually Less Than 3 Percent, Variable Interest Rate \| Corporate Joint Venture
Business Acquisition [Line Items]
Loans converted	$ 1,900
Core Portfolio
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		305,800
Purchase Price		$ 204,243
Assumption of Debt		9,765
Acquisition costs		$ 1,100
Fund II
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		0
Purchase Price		$ 100,800
Assumption of Debt		$ 81,000
Fund IV
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		59,669
Purchase Price		$ 84,036
Assumption of Debt		0
Acquisition costs		$ 2,200
City Center \| San Fransisco, CA \| Core Portfolio
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		205,000
Percentage of interests acquired		100.00%
Purchase Price		$ 155,000
Assumption of Debt		$ 0
163 Highland Avenue \| Needham, MA \| Core Portfolio
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		40,500
Percentage of interests acquired		100.00%
Purchase Price		$ 24,000
Assumption of Debt		$ 9,765
Route 202 Shopping Center \| Wilmington, DE \| Core Portfolio
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		20,000
Percentage of interests acquired		100.00%		77.78%
Purchase Price		$ 5,643
Assumption of Debt		$ 0
Roosevelt Galleria [Member] \| San Fransisco, CA \| Core Portfolio
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		40,300
Percentage of interests acquired		100.00%
Purchase Price		$ 19,600
Assumption of Debt		$ 0
City Point - Tower I \| Brooklyn, NY \| Fund II
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		0
Percentage of interests acquired		95.00%	43.00%
Purchase Price		$ 100,800
Assumption of Debt		$ 81,000
Ownership interest in investment, percentage					52.00%
Total investment, percentage		95.00%
Number of residential units \| residential_unit		250
1035 Third Avenue \| New York, NY \| Fund IV
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		53,294
Percentage of interests acquired		100.00%
Purchase Price		$ 51,036
Assumption of Debt		$ 0
801 Madison Avenue \| New York, NY \| Fund IV
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		6,375
Percentage of interests acquired		100.00%
Purchase Price		$ 33,000
Assumption of Debt		$ 0
Acquisitions in 2015
Business Acquisition [Line Items]
Gross leasable area (in square feet) \| ft²		365,469
Purchase Price		$ 389,079
Assumption of Debt		90,765
Purchase Price Allocations
Land		70,659
Buildings and improvements		219,232
Debt assumed (included in Mortgage and other notes payable)		(9,765)
Total consideration		280,126
Acquisitions In 2014
Purchase Price Allocations
Land		83,104				$ 84,707
Buildings and improvements		155,501				224,011
Acquisition-related intangible assets (in Acquired lease intangibles, net)		79,030				0
Acquisition-related intangible liabilities (in Acquired lease intangibles, net)		(15,742)				(6,434)
Below market debt assumed (in Mortgage and other notes payable)		(1,709)				(2,100)
Total consideration		300,184				$ 300,184
Adjustments
Land		(1,603)
Buildings and improvements		(68,510)
Acquisition-related intangible assets (in Acquired lease intangibles, net)		79,030
Acquisition-related intangible liabilities (in Acquired lease intangibles, net)		(9,308)
Below market debt assumed (in Mortgage and other notes payable)		391
Total consideration		$ 0