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Balance Sheet Details - Summary of Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011
--- | --- | --- | --- | --- | --- | ---
Payables And Accruals [Abstract] |  |  |  |  |  |
Royalties | $ 5,574 |  | $ 4,349 |  |  |
Payroll and related expenses | 6,112 |  | 7,788 |  |  |
Product warranty | 2,451 | 2,664 | 2,329 | 2,674 | 1,738 | 1,525
Market development funds and price protection | 2,075 |  | 2,147 |  |  |
Deferred rent | 694 |  | 573 |  |  |
Professional fees | 2,715 |  | 1,549 |  |  |
Deferred revenue | 3,932 |  | 4,630 |  |  |
Other | 4,040 |  | 4,435 |  |  |
Accrued expenses, Total | $ 27,593 |  | $ 27,800 |  |  |

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