Subsequent Events - Additional Information (Detail) $ in Thousands	1 Months Ended	6 Months Ended
	Jul. 28, 2016 USD ($) Property Land_Parcel	Jun. 30, 2016 USD ($) Property	Jun. 30, 2015 USD ($)
Subsequent Event [Line Items]
Number of industrial properties acquired | Property		2
Purchase price of acquisitions | $		$ 71,223	$ 26,474
Subsequent Events
Subsequent Event [Line Items]
Number of industrial properties acquired | Property	1
Number of land parcels acquired | Land_Parcel	1
Purchase price of acquisitions | $	$ 14,905