Quarterly report pursuant to Section 13 or 15(d)

Commitment and Contingencies - Future Tenant Improvement Payments Due on Properties (Parenthetical) (Detail)

v2.4.0.8
Commitment and Contingencies - Future Tenant Improvement Payments Due on Properties (Parenthetical) (Detail) (Tenant Improvements [Member])
3 Months Ended
Mar. 31, 2014
Tenant Improvements [Member]
 
Operating Leased Assets [Line Items]  
Extended lease period 20 years
Lease expiration year 2034-09
Projected completion period of property expansion 2034-09