Commitments and Contingencies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013 sqft building
Commitments and Contingencies Disclosure [Abstract]
Number of industrial properties committed to development	1
Gross Leasable Area (GLA) of industrial properties committed to development	500,000
Estimated total construction costs	$ 54,000
Estimated total construction costs remaining to be funded	$ 5,200