Commitments and Contingencies - Additional Information (Detail) $ in Thousands, ft² in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) ft² Property	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Outstanding amount of letters of credit and performance bonds in the aggregate	$ 6,698
Number of industrial properties under construction | Property	4
Gross leasable area (GLA) of industrial properties under construction | ft²	1.4
Estimated total investment	$ 78,700
Estimated total investment remaining to be funded	59,700
Operating and ground lease expense	$ 1,281	$ 1,300	$ 1,440