Equity Method Investment, Ownership Percentage by Third Party

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- Definition

Mortgage Loans On Real Estate, Accrued Interest

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No definition available.

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- Definition

Area of a real estate property.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
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-Section 50
-Paragraph 3
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- Definition

Amount of gain (loss) on sale or disposal of an equity method investment.

+ References

No definition available.

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

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

The carrying amount of the outstanding balance due under the mortgage loan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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- Definition

The carrying amount of mortgage loans on real estate that were sold during the reporting period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section S99
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- Definition

The number of businesses acquired by the entity during the period.

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No definition available.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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-Name Accounting Standards Codification
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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.

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Investments in and Advances to Unconsolidated Affiliates - Core Portfolio (Details) $ in Thousands			1 Months Ended	9 Months Ended	12 Months Ended
	May 01, 2017 USD ($)	Jan. 04, 2017 USD ($) ft²	Apr. 29, 2016 USD ($)	Sep. 30, 2017 USD ($) ft² property	Dec. 31, 2016 USD ($)
Schedule of Equity Method Investments [Line Items]
Purchase Price				$ 149,732	$ 756,842
Notes receivable, net				250,194	276,163
Brandywine Market Square
Schedule of Equity Method Investments [Line Items]
Notes receivable, net	$ 153,400
Core Portfolio
Schedule of Equity Method Investments [Line Items]
Purchase Price					519,592
Notes receivable, net				198,395	216,400
Equity method investments				$ 175,535	165,031
Core Portfolio \| Crossroads
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage				49.00%
Square footage of real estate property (in square feet) \| ft²				311,000
Core Portfolio \| Georgetown Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage				50.00%
Square footage of real estate property (in square feet) \| ft²				28,000
Equity method investments				$ 3,751	4,287
Core Portfolio \| Gotham Plaza
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage				49.00%
Square footage of real estate property (in square feet) \| ft²				123,000
Percentage of voting interests acquired				49.00%
Equity method investments				$ 29,196	29,421
Core Portfolio \| Renaissance Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage				20.00%
Square footage of real estate property (in square feet) \| ft²				213,000
Percentage of voting interests acquired		20.00%
Number of businesses acquired \| property				18
Equity method investments				$ 35,139	36,437
Core Portfolio \| Brandywine Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage				22.22%
Square footage of real estate property (in square feet) \| ft²				1,000,000
Repayments of debt			$ 140,000
Equity method investments				$ 15,948	15,286
Core Portfolio \| Brandywine Market Square
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	61.11%			61.11%
Note receivable exchanged	$ 16,000
Note receivable accrued interest	$ 300			$ 300
Equity method investment, ownership percentage by third party	38.89%
Equity method investments	$ 16,600			$ 20,642	$ 5,469
Gain on equity method investment	$ 9,800
Core Portfolio \| Chicago, IL
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage				88.43%
Square footage of real estate property (in square feet) \| ft²				87,000
Core Portfolio \| Alexandria, Virginia \| Renaissance Portfolio
Schedule of Equity Method Investments [Line Items]
Square footage of real estate property (in square feet) \| ft²		6,200
Purchase Price		$ 3,000
Number of businesses acquired \| property				2
Core Portfolio \| Washington D.C. \| Renaissance Portfolio
Schedule of Equity Method Investments [Line Items]
Number of businesses acquired \| property				16