Investments In Unconsolidated Joint Ventures (Summary Of Results Of Operations Of Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Investments In Unconsolidated Joint Ventures [Abstract] | |||
| Total revenues | $ 358,751 | $ 377,711 | $ 318,980 |
| Operating and other expenses | (297,492) | (262,703) | (220,982) |
| Depreciation and amortization | (31,020) | (75,512) | (71,711) |
| Interest expense | (25,822) | (58,390) | (52,972) |
| Net income (loss) | $ 4,417 | $ (18,894) | $ (26,685) |