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Segment Information - Additional Information (Detail) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2017 USD ($) Segment | Jun. 30, 2016 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Number of business segments | Segment |  |  | 2 |
Operating profit (loss) | $ (24.8) | $ 49.5 | $ (27.5) | $ 21.9
Other Technology | Segment Reconciling Items |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating profit (loss) | $ 0.9 | $ 0.4 | $ 1.0 | $ 0.5

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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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