Investments in Real Estate - Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) $ in Thousands	Jun. 30, 2017 USD ($)
ASSETS
Land	$ 107,350
Buildings and improvements	120,364
Tenant improvements	3,924
Acquired lease intangible assets	12,867
Other acquired assets	143
Total assets acquired	244,648
Liabilities
Acquired lease intangible liabilities	2,687
Other assumed liabilities	1,514
Total liabilities assumed	4,201
Net assets acquired	$ 240,447