| Goodwill and Intangibles Assets (Tables)
 | 3 Months Ended | 
| Mar. 31, 2019 | 
|---|
| Goodwill and Intangible Assets Disclosure [Abstract] |  | 
| Schedule of Acquired Finite-Lived Intangible Assets by Major Class | 
The following table sets forth the Company’s finite-lived intangible assets resulting from business acquisitions and other purchases: 
|  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|   |   |   | March 31, 2019 |   | December 31, 2018 |  
|   | WeightedAverage
 Useful Life
 (in Years)
 |   | Gross Carrying Amount |   | Accumulated Amortization |   | Net Carrying Amount |   | Gross Carrying Value |   | Accumulated Amortization |   | Net Carrying Amount |  
|   |   |   | (in thousands) |  
| Licensed technology | 3.7 |   | $ | 2,070 | 
 |   | $ | (1,265 | ) |   | $ | 805 | 
 |   | $ | 2,070 | 
 |   | $ | (1,130 | ) |   | $ | 940 | 
 |  
| Developed technology | 6.9 |   | 240,461 | 
 |   | (83,055 | ) |   | 157,406 | 
 |   | 238,961 | 
 |   | (74,630 | ) |   | 164,331 | 
 |  
| Trademarks and trade names | 6.1 |   | 13,800 | 
 |   | (4,816 | ) |   | 8,984 | 
 |   | 13,800 | 
 |   | (4,252 | ) |   | 9,548 | 
 |  
| Customer relationships | 4.6 |   | 121,100 | 
 |   | (60,697 | ) |   | 60,403 | 
 |   | 121,100 | 
 |   | (55,647 | ) |   | 65,453 | 
 |  
| Non-compete covenants | 3.0 |   | 1,100 | 
 |   | (964 | ) |   | 136 | 
 |   | 1,100 | 
 |   | (872 | ) |   | 228 | 
 |  
|   | 6.1 |   | $ | 378,531 | 
 |   | $ | (150,797 | ) |   | $ | 227,734 | 
 |   | $ | 377,031 | 
 |   | $ | (136,531 | ) |   | $ | 240,500 | 
 |  | 
| Finite-lived Intangible Assets Amortization Expense | 
The following table sets forth amortization expense associated with finite-lived intangible assets, which is included in the consolidated statements of operations as follows:
 
|  |  
|  |  |  |  |  |  |  |  |  
|   | Three Months Ended March 31, |  
|   | 2019 |   | 2018 |  
|   | (in thousands) |  
| Cost of net revenue | $ | 8,434 | 
 |   | $ | 8,978 | 
 |  
| Research and development | 34 | 
 |   | 42 | 
 |  
| Selling, general and administrative | 5,798 | 
 |   | 7,994 | 
 |  
|   | $ | 14,266 | 
 |   | $ | 17,014 | 
 |  | 
| Schedule of Finite-Lived Intangible Assets | 
The following table sets forth the activity related to finite-lived intangible assets: 
|  |  
|  |  |  |  |  |  |  |  |  
|   | Three Months Ended March 31, |  
|   | 2019 |   | 2018 |  
|   | (in thousands) |  
| Beginning balance | $ | 240,500 | 
 |   | $ | 310,645 | 
 |  
| Transfers to developed technology from IPR&D | 1,500 | 
 |   | — | 
 |  
| Amortization | (14,266 | ) |   | (17,014 | ) |  
| Ending balance | $ | 227,734 | 
 |   | $ | 293,631 | 
 |  | 
| Schedule of Finite-Lived Intangible Assets, Future Amortization Expense | 
The following table presents future amortization of the Company’s finite-lived intangible assets at March 31, 2019:
 
|  |  
|  |  |  |  |  
|   | Amount |  
|   | (in thousands) |  
| 2019 (9 months) | $ | 42,715 | 
 |  
| 2020 | 56,168 | 
 |  
| 2021 | 55,385 | 
 |  
| 2022 | 37,855 | 
 |  
| 2023 | 25,660 | 
 |  
| Thereafter | 9,951 | 
 |  
| Total | $ | 227,734 | 
 |  | 
| Schedule of Indefinite-Lived Intangible Assets | 
Indefinite-lived intangible assets consist entirely of acquired in-process research and development technology, or IPR&D. The following table sets forth the Company’s activities related to the indefinite-lived intangible assets:
|  |  
|  |  |  |  |  |  |  |  |  
|   | Three Months Ended March 31, |  
|   | 2019 |   | 2018 |  
|   | (in thousands) |  
| Beginning balance | $ | 4,400 | 
 |   | $ | 4,400 | 
 |  
| Transfers to developed technology from IPR&D | (1,500 | ) |   | — | 
 |  
| Ending balance | $ | 2,900 | 
 |   | $ | 4,400 | 
 |  |