Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation and Employee Benefit Plans - Stock-Based Compensation (Detail)

v2.4.0.8
Stock-Based Compensation and Employee Benefit Plans - Stock-Based Compensation (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock based compensation $ 3,393 $ 2,789
Cost of net revenue [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock based compensation 29 24
Research and development [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock based compensation 2,194 1,754
Selling, general and administrative [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Stock based compensation $ 1,170 $ 1,011