Stock-Based Compensation and Employee Benefit Plans - Stock-Based Compensation (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2013
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Jun. 30, 2012
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Jun. 30, 2013
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Jun. 30, 2012
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Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
Stock based compensation | $ 3,339 | $ 2,333 | $ 6,128 | $ 4,556 |
Cost of net revenue [Member]
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Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
Stock based compensation | 26 | 20 | 50 | 38 |
Research and development [Member]
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Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
Stock based compensation | 2,158 | 1,481 | 3,912 | 2,929 |
Selling, general and administrative [Member]
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Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
Stock based compensation | $ 1,155 | $ 832 | $ 2,166 | $ 1,589 |