Acquisitions and Dispositions (Details 3) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition [Line Items]
Real Estate Revenue, Net	$ 70,010	$ 34,870	$ 167,360	$ 89,037
Net income	10,294	$ 3,983	22,902	$ 6,832
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Real Estate Revenue, Net	25,500		37,700
Net income	$ 2,300		$ 5,300