Segment Reporting (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting [Abstract]
Rental income from real estate assets sold or held for sale	$ 1,193	$ 5,398
Operating expenses from real estate assets sold or held for sale	(472)	(2,179)
Income (Loss) From Assets Held for Sale, Not Classified as Discontinued Operations	$ 721	$ 3,219