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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
	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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Amount of expense from discontinued operations, that reflects the allocation of the cost of tangible and intangible assets over the assets' useful lives.

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Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

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After tax income (loss) from operations of a business component (exclusive of any gain (loss) on disposal, or provision therefore) during the reporting period, until its disposal.

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Amount of operating expenses attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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