Real Estate Assets, Discontinued Operations and Assets Held for Sale (Table Illustration of Discontinued Operations in Income Statement) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Discontinued Operations
Revenues	$ 0	$ 229
Operating Expenses	0	8
Operating Income (Loss)	0	237
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	0	(86)
Income from discontinued operations	$ 0	$ 151