| Investments In Unconsolidated Joint Ventures (Summary Of Financial Position Of Unconsolidated Joint Ventures) (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Dec. 31, 2012 | 
|---|---|---|
| Investments In Unconsolidated Joint Ventures [Abstract] | ||
| Rental property, net | $ 736,487 | $ 180,254 | 
| Loan receivable | 44,459 | 42,276 | 
| Other assets | 434,714 | 311,847 | 
| Total assets | 1,215,660 | 534,377 | 
| Mortgages and loans payable | 600,473 | 168,908 | 
| Other liabilities | 71,552 | 12,141 | 
| Partners'/members' capital | 543,635 | 353,328 | 
| Total liabilities and partners'/members' capital | $ 1,215,660 | $ 534,377 | 
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- Definition Equity Method Investment Summarized Financial Information Loans Receivable No definition available. 
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- Definition Equity Method Investment, Summarized Financial Information, Other Assets No definition available. 
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- Definition Equity Method Investment, Summarized Financial Information, Other Liabilities No definition available. 
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- Definition Equity Method Investment, Summarized Financial Information, Rental Property, Net No definition available. 
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- Definition Equity Method Investment, Summarized Financial Information, Secured Debt No definition available. 
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- Details 
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- Definition The amount of assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of equity, excluding noncontrolling interest, attributable to the equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The amount of liabilities and equity reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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