Property, Plant and Equipment, Number of Disposals

No definition available.

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- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

No definition available.

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- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

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- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

The number of derivative instruments of a particular group held by the entity.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

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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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- Definition

This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting and losses recognized for other than temporary impairments (OTTI) of the subject investments.

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- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

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-Publisher FASB

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-Topic 360

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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- Definition

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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-Glossary Investing Activities

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- Definition

The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

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-Publisher FASB

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- Definition

Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

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Fair Value Measurements (Narrative) (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2015 USD ($) outparcel derivative_instrument	Jun. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) outparcel derivative_instrument	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($) derivative_instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Gain (Loss) on Investments	$ 0		$ 0	$ 16,560	$ 0
Net proceeds from sales of available-for-sale securities				20,755	0
Long-term debt, fair value	5,091,015			5,091,015		$ 4,947,026
Mortgage and other indebtedness	4,821,475			4,821,475		$ 4,700,460
Loss on impairment	$ 884		$ 497	$ 3,665	$ 17,753
Interest Rate Swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of Instruments \| derivative_instrument	4			4		4
Common Stock
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 4,195			$ 4,195		$ 4,195
Madison Square
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loss on impairment		$ 2,620
Fair value of real estate investments		$ 5,000
Burlington
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loss on impairment				161
Net proceeds from sale of real estate				750
Carrying value of real estate assets	911			911
Outparcel Sale
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loss on impairment	$ 884			$ 883
Number of properties disposed of \| outparcel	2			2