Quarterly report pursuant to Section 13 or 15(d)

Summary of Net Revenue by Geographic Location (Detail)

v2.4.0.6
Summary of Net Revenue by Geographic Location (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Revenue From External Customers By Geographic Area [Line Items]    
Net revenue $ 14,597 $ 12,320
United States
   
Revenue From External Customers By Geographic Area [Line Items]    
Net revenue 9,048 8,364
International
   
Revenue From External Customers By Geographic Area [Line Items]    
Net revenue $ 5,549 $ 3,956