Quarterly report pursuant to sections 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information 1 (Detail)

v2.4.0.8
Summary of Significant Accounting Policies - Additional Information 1 (Detail)
3 Months Ended
Mar. 31, 2014
Minimum [Member]
 
Property, Plant and Equipment [Line Items]  
Property and equipment, estimated useful lives 3 years
Maximum [Member]
 
Property, Plant and Equipment [Line Items]  
Property and equipment, estimated useful lives 7 years