Investments In Unconsolidated Joint Ventures (Summary Of Financial Position Of Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands |
Jun. 30, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Investments In Unconsolidated Joint Ventures [Abstract] | ||
| Rental property, net | $ 1,597,359 | $ 1,534,812 |
| Other assets | 421,753 | 398,222 |
| Total assets | 2,019,112 | 1,933,034 |
| Mortgages and loans payable | 1,193,461 | 1,060,020 |
| Other liabilities | 215,077 | 211,340 |
| Partners'/members' capital | 610,574 | 661,674 |
| Total liabilities and partners'/members' capital | $ 2,019,112 | $ 1,933,034 |