Investments In Unconsolidated Joint Ventures (Summary Of Financial Position Of Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Investments In Unconsolidated Joint Ventures [Abstract] | ||
| Rental property, net | $ 903,253 | $ 931,419 |
| Other assets | 212,205 | 207,903 |
| Total assets | 1,115,458 | 1,139,322 |
| Mortgages and loans payable | 686,797 | 689,412 |
| Other liabilities | 67,072 | 80,746 |
| Partners'/members' capital | 361,589 | 369,164 |
| Total liabilities and partners'/members' capital | $ 1,115,458 | $ 1,139,322 |