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Acquisitions, Dispositions, Impairments and Discontinued Operations (Summary Of Income From Discontinued Operations) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Acquisitions and Discontinued Operations [Abstract] |  |  |  |
Property revenues |  | $ 6,671 |  | $ 21,490
Property expenses |  | (2,849) |  | (9,209)
Operating results |  | 3,822 |  | 12,281
Depreciation and amortization |  | (1,503) |  | (5,056)
Income from discontinued operations | 0 | 2,319 | 0 | 7,225
Gain on sale of discontinued operations, net of tax | $ 0 | $ 34,410 | $ 0 | $ 91,059

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