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Segment Information - Additional Information (Detail) |  | 3 Months Ended
--- | --- | ---
Jan. 01, 2018 USD ($) | Mar. 31, 2018 USD ($) segment | Mar. 31, 2017 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Revenue from software license extensions and renewals | $ 53,000,000 |  |  |
Number of business segments | segment |  | 2 |  |
Operating profit (loss) |  | $ 101,800,000 | $ 21,800,000 | [1]
Other Technology | Segment Reconciling Items |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating profit (loss) |  | $ 0 | $ 100,000 |
[1] | *Amounts were changed to conform to the current-year presentation. See Note 3.

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- Definition Revenue from multiple-deliverable arrangements that include licensing fees and services revenue. Licensing revenue is consideration received from another party for the right to use, but not own, certain of the entity's intangible assets. Licensing arrangements include, but are not limited to, rights to use a patent, copyright, technology, manufacturing process, software or trademark. Licensing fees are generally, but not always, fixed as to amount and not dependent upon the revenue generated by the licensing party. An entity may receive licensing fees for licenses that also generate royalty payments to the entity. Services revenue may be derived by providing other, nonspecified, services during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(d),(e)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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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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