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Balance Sheet Details - Summary of Accrued Expenses (Detail) - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014 | Jun. 30, 2014 | Dec. 31, 2013
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |
Royalties | $ 5,709 | $ 4,035 |  |
Payroll and related expenses | 14,760 | 8,038 |  |
Product warranty | 852 | 1,196 | $ 1,580 | $ 2,244
Market development funds and price protection | 2,924 | 2,502 |  |
Professional fees | 1,043 | 780 |  |
Deferred revenue | 592 | 962 |  |
Restructuring | 70 | 1,886 |  |
Acquisition-related earn out | 1,446 | 0 |  |
Other | 3,023 | 4,445 |  |
Accrued expenses, Total | $ 30,419 | $ 23,844 |  |

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