Discontinued Operations (Summary Of Income From Discontinued Operations And Related Realized And Unrealized Gains (Losses)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Discontinued Operations [Abstract]
Total revenues	$ 6,405	$ 33,610
Operating and other expenses	(2,472)	(13,454)
Depreciation and amortization	(1,769)	(8,196)
Interest expense		(118)
Income from discontinued operations	2,164	11,842
Loss from early extinguishment of debt		(703)
Impairments		(23,851)	[1]
Realized gains on disposition of rental property	47,321	84,930
Realized gains (losses) on disposition of rental property and impairments, net	47,321	61,079
Total discontinued operations	$ 49,485	$ 72,218

[1] Represents impairment charges recorded on certain properties prior to their sale.