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Goodwill and Intangible Assets - Intangible Assets (Detail) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross | $ 568,653 | $ 168,847
Accumulated Amortization | (147,553) | (124,563)
Foreign Currency Translation | (1,289) | (257)
Intangible assets, net | 419,811 | 44,027
Completed Technology [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross | 176,586 | 101,200
Accumulated Amortization | (89,912) | (82,330)
Foreign Currency Translation | (290) | (272)
Intangible assets, net | 86,384 | 18,598
Customer Relationships [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross | 280,344 | 37,251
Accumulated Amortization | (25,742) | (16,345)
Foreign Currency Translation | (954) | 10
Intangible assets, net | 253,648 | 20,916
Patents, Trademarks, Trade Names and Other [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross | 104,824 | 30,396
Accumulated Amortization | (31,899) | (25,888)
Foreign Currency Translation | (26) | 5
Intangible assets, net | 72,899 | $ 4,513
In-process Research and Development [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets, Gross | 6,899 |
Foreign Currency Translation | (19) |
Intangible assets, net | $ 6,880 |

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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