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Summary of Disaggregated Revenue by Primary Geographical Market, Major Product Line and Timing (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Other Revenues [Line Items] |  |
Licensing and related revenues | $ 10,083 | $ 9,535
Royalties | 7,486 | 11,752
Total | 17,569 | 21,287
Transferred at Point in Time |  |
Other Revenues [Line Items] |  |
Licensing and related revenues | 7,524 |
Royalties | 7,486 |
Total | 15,010 |
Transferred over Time |  |
Other Revenues [Line Items] |  |
Licensing and related revenues | 2,559 |
Total | 2,559 |
DSP Products |  |
Other Revenues [Line Items] |  |
Licensing and related revenues | 7,375 |
Royalties | 6,878 |
Total | 14,253 |
Connectivity Products |  |
Other Revenues [Line Items] |  |
Licensing and related revenues | 2,708 |
Royalties | 608 |
Total | 3,316 |
United States |  |
Other Revenues [Line Items] |  |
Licensing and related revenues | 1,360 |
Royalties | 347 |
Total | 1,707 | 1,303
Europe and Middle East |  |
Other Revenues [Line Items] |  |
Licensing and related revenues | 1,338 |
Royalties | 1,115 |
Total | 2,453 | 3,931
Asia Pacific |  |
Other Revenues [Line Items] |  |
Licensing and related revenues | 7,385 |
Royalties | 6,024 |
Total | $ 13,409 | $ 16,053

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- Definition Revenue earned during the period relating to 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. + 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(e)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + 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) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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