Property Acquisitions, Discontinued Operations, And Assets Held For Sale (Summary Of Income From Discontinued Operations) (Details) (USD $) In Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2010	Sep. 30, 2010
Property Acquisitions, Discontinued Operations, And Assets Held For Sale [Abstract]
Property revenues	$ 2,954	$ 8,534
Property expenses	1,222	3,515
Operating income	1,732	5,019
Depreciation and amortization	651	2,276
Income from discontinued operations	$ 1,081	$ 2,743

This element represents the overall income (loss) from a disposal group that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items before deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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