Subsequent Events - Additional Information (Detail) $ in Thousands	1 Months Ended	9 Months Ended
	Oct. 27, 2016 USD ($) Property	Sep. 30, 2016 USD ($) Property	Sep. 30, 2015 USD ($)
Subsequent Event [Line Items]
Number of industrial properties acquired | Property		4
Purchase price of industrial properties acquired | $		$ 95,157	$ 73,179
Subsequent Events
Subsequent Event [Line Items]
Number of industrial properties acquired | Property	1
Purchase price of industrial properties acquired | $	$ 8,405