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Intangible Assets - Carrying Value of Intangible Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | --- | ---
Intangible Assets [Line Items] |  |  |
Goodwill, Gross carrying amount | $ 1,385,995 | $ 1,385,115 |
Goodwill, Accumulated amortization | 0 | 0 |
Goodwill, Net carrying amount | 1,385,995 | 1,385,115 | $ 943,374
Finite-lived intangible assets, Gross Carrying Amount | 786,189 | 772,604 |
Finite-lived intangible assets, Accumulated amortization | (349,779) | (256,754) |
Finite-lived intangible assets, Net carrying amount | 436,410 | 515,850 |
Intangible assets, Gross carrying amount | 909,861 | 912,625 |
Intangible assets, Net carrying amount | 560,082 | 655,871 | $ 461,292
Indefinite-Lived Assets Not Subject to Amortization [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Accumulated amortization | 0 | 0 |
Indefinite-lived intangible assets, Carrying amount | 123,672 | 140,021 |
Indefinite-lived intangible assets, Carrying amount | 123,672 | 140,021 |
Customer Relationships [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Gross Carrying Amount | 309,112 | 309,573 |
Finite-lived intangible assets, Accumulated amortization | (77,872) | (61,641) |
Finite-lived intangible assets, Net carrying amount | 231,240 | 247,932 |
Developed Technology [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Gross Carrying Amount | 420,928 | 416,817 |
Finite-lived intangible assets, Accumulated amortization | (239,233) | (170,576) |
Finite-lived intangible assets, Net carrying amount | 181,695 | 246,241 |
Trademarks [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Gross Carrying Amount | 20,534 | 19,417 |
Finite-lived intangible assets, Accumulated amortization | (10,915) | (7,255) |
Finite-lived intangible assets, Net carrying amount | 9,619 | 12,162 |
Trademarks [Member] | Indefinite-Lived Assets Not Subject to Amortization [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Accumulated amortization | 0 | 0 |
Indefinite-lived intangible assets, Carrying amount | 121,972 | 129,671 |
Indefinite-lived intangible assets, Carrying amount | 121,972 | 129,671 |
Backlog [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Gross Carrying Amount | 12,638 | 12,559 |
Finite-lived intangible assets, Accumulated amortization | (12,638) | (12,559) |
Finite-lived intangible assets, Net carrying amount | 0 | 0 |
In-Process/Service Research and Development [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Gross Carrying Amount | 22,977 | 14,238 |
Finite-lived intangible assets, Accumulated amortization | (9,121) | (4,723) |
Finite-lived intangible assets, Net carrying amount | 13,856 | 9,515 |
In-Process/Service Research and Development [Member] | Indefinite-Lived Assets Not Subject to Amortization [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Accumulated amortization | 0 | 0 |
Indefinite-lived intangible assets, Carrying amount | 1,700 | 10,350 |
Indefinite-lived intangible assets, Carrying amount | $ 1,700 | $ 10,350 |

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