Recent Transactions (Summary Of Income (Loss) From Properties Disposed) (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Real Estate Properties [Line Items] | ||||
| Total revenues | $ 157,517 | $ 146,158 | $ 459,667 | $ 448,440 |
| Depreciation and amortization | (48,117) | (44,099) | (134,639) | (127,266) |
| Operating income (loss) | 27,931 | (139,310) | 82,528 | (84,949) |
| Impairments | (164,176) | (164,176) | ||
| Realized gains/unrealized Losses on disposition | (17,053) | 18,718 | 68,664 | 53,261 |
| Net income (loss) available to common shareholders | (8,541) | (126,892) | 102,043 | (94,034) |
| Disposal Group, Not Discontinued Operations [Member] | ||||
| Real Estate Properties [Line Items] | ||||
| Total revenues | 1,854 | 12,934 | 20,048 | 47,583 |
| Operating and other expenses | (1,709) | (7,273) | (13,374) | (25,488) |
| Depreciation and amortization | (2,979) | (7,798) | (11,590) | (20,061) |
| Interest expense | (625) | (1,241) | (2,011) | (6,621) |
| Operating income (loss) | (3,459) | (3,378) | (6,927) | (4,587) |
| Impairments | (61,891) | (61,891) | ||
| Realized gains/unrealized Losses on disposition | 7,340 | 18,718 | 93,057 | 53,261 |
| Net income (loss) available to common shareholders | $ 3,881 | $ (46,551) | $ 86,130 | $ (13,217) |