| Balance Sheet Details | 
Balance Sheet Details Cash and cash equivalents and investments consist of the following: 
|  |  
|  |  |  |  |  |  |  |  |  
|   | September 30,2015
 |   | December 31, 2014
 |  
| Cash and cash equivalents | $ | 58,149 | 
 |   | $ | 20,696 | 
 |  
| Short-term investments | 26,797 | 
 |   | 48,399 | 
 |  
| Long-term investments | 19,847 | 
 |   | 10,256 | 
 |  
|   | $ | 104,793 | 
 |   | $ | 79,351 | 
 | 
 Inventory consists of the following: 
|  |  
|  |  |  |  |  |  |  |  |  
|   | September 30,2015
 |   | December 31, 2014
 |  
| Work-in-process | $ | 19,667 | 
 |   | $ | 4,169 | 
 |  
| Finished goods | 16,598 | 
 |   | 6,689 | 
 |  
|   | $ | 36,265 | 
 |   | $ | 10,858 | 
 | 
 Property and equipment consist of the following: 
|  |  
|  |  |  |  |  |  |  |  |  |  |  
|   | Useful Life (in Years) |   | September 30,2015
 |   | December 31, 2014
 |  
| Furniture and fixtures | 5 |   | $ | 2,388 | 
 |   | $ | 735 | 
 |  
| Machinery and equipment | 3 -5 |   | 22,997 | 
 |   | 12,695 | 
 |  
| Masks and production equipment | 2 |   | 8,062 | 
 |   | 8,672 | 
 |  
| Software | 3 |   | 3,020 | 
 |   | 905 | 
 |  
| Leasehold improvements | 4 -5 |   | 10,492 | 
 |   | 4,451 | 
 |  
| Construction in progress | N/A |   | 84 | 
 |   | 276 | 
 |  
|   |   |   | 47,043 | 
 |   | 27,734 | 
 |  
| Less accumulated depreciation and amortization |   |   | (26,500 | ) |   | (15,293 | ) |  
|   |   |   | $ | 20,543 | 
 |   | $ | 12,441 | 
 | 
 Intangible assets, net consist of the following: 
|  |  
|  |  |  |  |  |  |  |  |  |  |  
|   | Weighted Average Amortization Period (in Years) |   | September 30,2015
 |   | December 31, 2014
 |  
| Licensed technology | 3 |   | $ | 2,921 | 
 |   | $ | 2,821 | 
 |  
| Developed technology | 7 |   | 46,700 | 
 |   | 2,700 | 
 |  
| Trademarks and trade names | 7 |   | 1,700 | 
 |   | — | 
 |  
| Customer relationships | 5 |   | 4,700 | 
 |   | — | 
 |  
| Backlog | 1 |   | 24,200 | 
 |   | — | 
 |  
| Less accumulated amortization |   |   | (25,666 | ) |   | (2,435 | ) |  
|   |   |   | 54,555 | 
 |   | 3,086 | 
 |  
| In-process research and development |   |   | 25,100 | 
 |   | 7,300 | 
 |  
|   |   |   | $ | 79,655 | 
 |   | $ | 10,386 | 
 | 
 
The following table presents future amortization of the Company’s intangible assets at September 30, 2015:
 
|  |  
|  |  |  |  |  
|   | Amortization |  
| 2015 | $ | 6,693 | 
 |  
| 2016 | 8,000 | 
 |  
| 2017 | 7,888 | 
 |  
| 2018 | 7,871 | 
 |  
| 2019 | 7,854 | 
 |  
| Thereafter | 16,249 | 
 |  
| Total | $ | 54,555 | 
 | 
 Deferred revenue and deferred profit consist of the following: 
|  |  
|  |  |  |  |  |  |  |  |  
|   | September 30,2015
 |   | December 31, 2014
 |  
| Deferred revenue—rebates | $ | 23 | 
 |   | $ | 21 | 
 |  
| Deferred revenue—distributor transactions | 6,112 | 
 |   | 5,585 | 
 |  
| Deferred cost of net revenue—distributor transactions | (1,997 | ) |   | (1,994 | ) |  
|   | $ | 4,138 | 
 |   | $ | 3,612 | 
 | 
 Accrued price protection liability consists of the following activity: 
|  |  
|  |  |  |  |  |  |  |  |  
|   | Nine Months EndedSeptember 30,
 |  
|   | 2015 |   | 2014 |  
| Beginning balance | $ | 10,018 | 
 |   | $ | 7,880 | 
 |  
| Additional liability from acquisition | 1,309 | 
 |   | — | 
 |  
| Charged as a reduction of revenue | 28,522 | 
 |   | 15,920 | 
 |  
| Reversal of unclaimed rebates | (112 | ) |   | (27 | ) |  
| Payments | (20,033 | ) |   | (11,276 | ) |  
| Ending balance | $ | 19,704 | 
 |   | $ | 12,497 | 
 | 
 Accrued expenses and other current liabilities consist of the following: 
|  |  
|  |  |  |  |  |  |  |  |  
|   | September 30,2015
 |   | December 31, 2014
 |  
| Accrued technology license payments | $ | 3,000 | 
 |   | $ | 3,000 | 
 |  
| Accrued professional fees | 1,346 | 
 |   | 422 | 
 |  
| Accrued restructuring | 1,339 | 
 |   | — | 
 |  
| Accrued litigation costs | 415 | 
 |   | 560 | 
 |  
| Accrued royalty | 1,846 | 
 |   | — | 
 |  
| Deferred tax liability | 3,393 | 
 |   | — | 
 |  
| Other | 7,812 | 
 |   | 1,566 | 
 |  
|   | $ | 19,151 | 
 |   | $ | 5,548 | 
 |  |