Real Estate Disposition Activities (Details 2) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) community	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) community	Sep. 30, 2014 USD ($)
Summary of income from discontinued operations
Rental income	$ 0	$ 0	$ 0	$ 579
Operating and other expenses	0	0	0	(269)
Depreciation expense	0	0	0	0
Income from discontinued operations	$ 0	$ 0	$ 0	$ 310
Number Of Communities Held For Sale | community	0		0