Discontinued Operations (Summary Of Income From Discontinued Operations And Related Realized And Unrealized Gains (Losses)) (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Discontinued Operations [Abstract] | |||
| Total revenues | $ 134,915,000 | $ 169,672,000 | $ 158,881,000 |
| Operating and other expenses | (54,129,000) | (69,045,000) | (66,528,000) |
| Depreciation and amortization | (4,806,000) | (71,021,000) | (61,029,000) |
| Interest expense | (5,256,000) | (5,240,000) | (5,990,000) |
| Loss from early extinguishment of debt | (1,757,000) | ||
| Income from discontinued operations | 70,724,000 | 24,366,000 | 23,577,000 |
| Unrealized losses on disposition of rental property | (14,040,000) | (141,266,000) | |
| Realized gains (losses) on disposition of rental property | 25,241,000 | 7,916,000 | |
| Realized gains (losses) and unrealized losses on disposition of rental property and impairments, net | 11,201,000 | (133,350,000) | |
| Total discontinued operations, net | $ 81,925,000 | $ (108,984,000) | $ 23,577,000 |