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Mortgage Loans Payable And Credit Facility (Summary Of The Derivative Financial Instruments Held) (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2014 contract | Dec. 31, 2013 contract
Other Assets And Deferred Charges, Net [Member] |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Count | 2 |  |  |
Notional values | $ 75,000,000 |  |  |
Maturity date | 2021 |  |  |
Fair value | 589,000 |  |  |
Accounts Payable And Accrued Liabilities [Member] |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Count | 1 |  | 1 |
Notional values | 11,827,000 | [1] | 11,894,000 | [1]
Maturity date | 2018 |  |  |
Fair value | $ 625,000 |  | $ 647,000 |
[1] | At March 31, 2014 and December 31, 2013, amounts are interest rate swaps related to mortgage loans payable - real estate held for sale/conveyance on the consolidated balance sheets.

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- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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- Definition Fair value as of the balance sheet date of all interest rate derivative liabilities designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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