Real Estate Investments - Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Details) $ in Thousands	Jun. 30, 2016 USD ($)
Real Estate Properties
Land	$ 75,150
Site improvements	6,010
Building and improvements	112,630
In-place leases	26,620
Above-market leases	2,060
Below-market leases	(12,440)
Net assets acquired	210,030
Eleven Asset Retail Portfolio
Real Estate Properties
Land	66,260
Site improvements	3,870
Building and improvements	88,820
In-place leases	20,630
Above-market leases	1,960
Below-market leases	(11,040)
Net assets acquired	170,500
Southgate Square
Real Estate Properties
Land	8,890
Site improvements	2,140
Building and improvements	23,810
In-place leases	5,990
Above-market leases	100
Below-market leases	(1,400)
Net assets acquired	$ 39,530