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Business Segment, Geographic Area, Product and Significant Customer Information - Reconciliation of Segment Assets to Consolidated Total Assets (Detail) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Consolidated total assets | $ 2,241,665 | $ 1,273,347
Property, plant and equipment, net | 179,694 | 68,856
Other assets | 29,926 | 21,250
Operating Segments [Member] |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Consolidated total assets | 522,818 | 254,514
Segment Reconciling Items [Member] |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Cash and cash equivalents and investments | 435,234 | 658,237
Other current assets, including restricted cash | 59,547 | 26,760
Property, plant and equipment, net | 179,694 | 68,856
Goodwill and intangible assets, net | 1,014,446 | 243,730
Other assets | $ 29,926 | $ 21,250

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