| Investments In Unconsolidated Joint Ventures (Summary Of Financial Position Of Unconsolidated Joint Ventures) (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2014 | Dec. 31, 2013 | 
|---|---|---|
| Investments In Unconsolidated Joint Ventures [Abstract] | ||
| Rental property, net | $ 1,404,929 | $ 755,049 | 
| Loan receivable | 45,050 | |
| Other assets | 445,127 | 582,990 | 
| Total assets | 1,850,056 | 1,383,089 | 
| Mortgages and loans payable | 992,434 | 637,709 | 
| Other liabilities | 221,414 | 87,231 | 
| Partners'/members' capital | 636,208 | 658,149 | 
| Total liabilities and partners'/members' capital | $ 1,850,056 | $ 1,383,089 | 
| X | ||||||||||
| 
- Definition Equity Method Investment Summarized Financial Information Loans Receivable No definition available. 
 | 
| X | ||||||||||
| 
- Definition Equity Method Investment, Summarized Financial Information, Other Assets No definition available. 
 | 
| X | ||||||||||
| 
- Definition Equity Method Investment, Summarized Financial Information, Other Liabilities No definition available. 
 | 
| X | ||||||||||
| 
- Definition Equity Method Investment, Summarized Financial Information, Rental Property, Net No definition available. 
 | 
| X | ||||||||||
| 
- Definition Equity Method Investment, Summarized Financial Information, Secured Debt No definition available. 
 | 
| X | ||||||||||
| 
- Details 
 | 
| X | ||||||||||
| 
- Definition The amount of assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- 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 
 | 
| X | ||||||||||
| 
- 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 
 |