Recent Transactions (Summary Of Income From Properties Disposed) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
|
| Real Estate Properties [Line Items] | ||||
| Total revenues | $ 148,567 | $ 160,300 | $ 302,282 | $ 329,896 |
| Depreciation and amortization | (42,365) | (44,711) | (83,167) | (89,696) |
| Income from properties disposed of | 27,353 | 29,557 | 54,361 | 42,724 |
| Realized gains on dispositions | 34,399 | 54,584 | 34,543 | 54,584 |
| Total Income from properties disposed of | 35,379 | 51,123 | 32,858 | 35,825 |
| Disposal Group, Not Discontinued Operations [Member] | ||||
| Real Estate Properties [Line Items] | ||||
| Total revenues | 2,728 | 14,424 | 5,647 | 32,797 |
| Operating and other expenses | (688) | (7,025) | (1,544) | (17,320) |
| Depreciation and amortization | (912) | (3,045) | (2,034) | (7,035) |
| Interest income | (557) | (880) | (1,355) | (1,767) |
| Income from properties disposed of | 571 | 3,474 | 714 | 6,675 |
| Realized gains on dispositions | 34,399 | 54,584 | 34,543 | 54,584 |
| Total Income from properties disposed of | $ 34,970 | $ 58,058 | $ 35,257 | $ 61,259 |