Balance Sheet Details (Tables)
   | 
6 Months Ended | 
Jun. 30, 2015  | 
| Balance Sheet Related Disclosures [Abstract] | 
 
 | 
| Cash, Cash Equivalents and Investments | 
Cash and cash equivalents and investments consist of the following: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
   | 
June 30,  2015  | 
   | 
December 31,  2014  | 
 
Cash and cash equivalents  | 
$  | 
56,731  | 
 
  | 
   | 
$  | 
20,696  | 
 
  | 
 
Short-term investments  | 
16,638  | 
 
  | 
   | 
48,399  | 
 
  | 
 
Long-term investments  | 
8,706  | 
 
  | 
   | 
10,256  | 
 
  | 
 
   | 
$  | 
82,075  | 
 
  | 
   | 
$  | 
79,351  | 
 
  | 
 
  
 
 | 
| Inventory | 
Inventory consists of the following: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
   | 
June 30,  2015  | 
   | 
December 31,  2014  | 
 
Work-in-process  | 
$  | 
21,778  | 
 
  | 
   | 
$  | 
4,169  | 
 
  | 
 
Finished goods  | 
17,044  | 
 
  | 
   | 
6,689  | 
 
  | 
 
   | 
$  | 
38,822  | 
 
  | 
   | 
$  | 
10,858  | 
 
  | 
 
  
 
 | 
| Property and Equipment | 
Property and equipment consist of the following: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
   | 
 Useful Life 
(in Years) 
 | 
   | 
June 30,  2015  | 
   | 
December 31,  2014  | 
 
Furniture and fixtures  | 
5  | 
   | 
$  | 
2,416  | 
 
  | 
   | 
$  | 
735  | 
 
  | 
 
Machinery and equipment  | 
3 -5  | 
   | 
22,706  | 
 
  | 
   | 
12,695  | 
 
  | 
 
Masks and production equipment  | 
2  | 
   | 
8,672  | 
 
  | 
   | 
8,672  | 
 
  | 
 
Software  | 
3  | 
   | 
2,800  | 
 
  | 
   | 
905  | 
 
  | 
 
Leasehold improvements  | 
4 -5  | 
   | 
10,371  | 
 
  | 
   | 
4,451  | 
 
  | 
 
Construction in progress  | 
N/A  | 
   | 
97  | 
 
  | 
   | 
276  | 
 
  | 
 
   | 
   | 
   | 
47,062  | 
 
  | 
   | 
27,734  | 
 
  | 
 
Less accumulated depreciation and amortization  | 
   | 
   | 
(23,939  | 
)  | 
   | 
(15,293  | 
)  | 
 
   | 
   | 
   | 
$  | 
23,123  | 
 
  | 
   | 
$  | 
12,441  | 
 
  | 
 
  
 
 | 
| Intangible Assets | 
Intangible assets, net consist of the following: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
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   | 
 Weighted 
Average 
Amortization 
Period 
(in Years) 
 | 
   | 
June 30,  2015  | 
   | 
December 31,  2014  | 
 
Licensed technology  | 
3  | 
   | 
$  | 
2,821  | 
 
  | 
   | 
$  | 
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  | 
   | 
   | 
(11,844  | 
)  | 
   | 
(2,435  | 
)  | 
 
   | 
   | 
   | 
68,277  | 
 
  | 
   | 
3,086  | 
 
  | 
 
In-process research and development  | 
   | 
   | 
25,100  | 
 
  | 
   | 
7,300  | 
 
  | 
 
   | 
   | 
   | 
$  | 
93,377  | 
 
  | 
   | 
$  | 
10,386  | 
 
  | 
 
  
 
 | 
| Amortization of Company's Intangible Assets | 
The following table presents future amortization of the Company’s intangible assets at June 30, 2015:
 
 |  
 | 
 | 
 | 
 | 
 
   | 
Amortization  | 
 
2015  | 
$  | 
20,499  | 
 
  | 
 
2016  | 
7,967  | 
 
  | 
 
2017  | 
7,854  | 
 
  | 
 
2018  | 
7,854  | 
 
  | 
 
2019  | 
7,854  | 
 
  | 
 
Thereafter  | 
16,249  | 
 
  | 
 
Total  | 
$  | 
68,277  | 
 
  | 
 
  
 
 | 
| Deferred Revenue and Deferred Profit | 
Deferred revenue and deferred profit consist of the following: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
   | 
June 30,  2015  | 
   | 
December 31,  2014  | 
 
Deferred revenue—rebates  | 
$  | 
23  | 
 
  | 
   | 
$  | 
21  | 
 
  | 
 
Deferred revenue—distributor transactions  | 
6,358  | 
 
  | 
   | 
5,585  | 
 
  | 
 
Deferred cost of net revenue—distributor transactions  | 
(2,246  | 
)  | 
   | 
(1,994  | 
)  | 
 
   | 
$  | 
4,135  | 
 
  | 
   | 
$  | 
3,612  | 
 
  | 
 
  
 
 | 
| Price Protection Liability | 
Accrued price protection liability consists of the following activity: 
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 | 
 | 
 | 
 | 
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   | 
Six Months Ended June 30,  | 
 
   | 
2015  | 
   | 
2014  | 
 
Beginning balance  | 
$  | 
10,018  | 
 
  | 
   | 
$  | 
15,017  | 
 
  | 
 
Additional liability from acquisition  | 
3,486  | 
 
  | 
   | 
—  | 
 
  | 
 
Charged as a reduction of revenue  | 
14,781  | 
 
  | 
   | 
6,677  | 
 
  | 
 
Reversal of unclaimed rebates  | 
(63  | 
)  | 
   | 
(242  | 
)  | 
 
Payments  | 
(12,443  | 
)  | 
   | 
(7,072  | 
)  | 
 
Ending balance  | 
$  | 
15,779  | 
 
  | 
   | 
$  | 
14,380  | 
 
  | 
 
  
 
 | 
| Accrued Expenses | 
Accrued expenses and other current liabilities consist of the following: 
 |  
 | 
 | 
 | 
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 | 
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   | 
June 30,  2015  | 
   | 
December 31,  2014  | 
 
Accrued technology license payments  | 
$  | 
3,000  | 
 
  | 
   | 
$  | 
3,000  | 
 
  | 
 
Accrued professional fees  | 
1,976  | 
 
  | 
   | 
422  | 
 
  | 
 
Accrued product liability  | 
3,606  | 
 
  | 
   | 
—  | 
 
  | 
 
Accrued restructuring  | 
1,384  | 
 
  | 
   | 
—  | 
 
  | 
 
Accrued litigation costs  | 
700  | 
 
  | 
   | 
560  | 
 
  | 
 
Accrued royalty  | 
1,824  | 
 
  | 
   | 
—  | 
 
  | 
 
Deferred tax liability  | 
3,762  | 
 
  | 
   | 
—  | 
 
  | 
 
Other  | 
8,429  | 
 
  | 
   | 
1,566  | 
 
  | 
 
   | 
$  | 
24,681  | 
 
  | 
   | 
$  | 
5,548  | 
 
  | 
 
  
 
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