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           Organization and Summary of Significant Accounting Policies - Additional Information (Detail) 
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        3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
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           Sep. 30, 2013 
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           Sep. 30, 2012 
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           Sep. 30, 2013 
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           Sep. 30, 2012 
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| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||||
| Percentage of revenue from company's distributors | 27.00% | 38.00% | 29.00% | 40.00% | 
| Term of Invoice of the distributor | 30 days | |||
| X | ||||||||||
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- Definition 
          Percentage of revenue from sales generated through distributors. No definition available. 
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| X | ||||||||||
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- Definition 
          Term of Invoice of the distributor. No definition available. 
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| X | ||||||||||
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- Details 
          
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