Adeia 10-Q 7 Nov 18 2018 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 31, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	XPERI CORPORATION
Trading Symbol	XPER
Entity Central Index Key	1,690,666
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Document Type	10-Q
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		48,418,161

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net loss	$ (83,049)	$ (62,202)
Adjustments to reconcile net loss to net cash from operating activities:
Depreciation of property and equipment	5,073	5,351
Amortization of intangible assets	81,573	84,475
Stock-based compensation expense	22,080	23,961
Deferred income tax	(21,247)	(25,295)
Amortization of debt issuance costs and other	2,636	2,193
Bad debt expense	345	1,849
Changes in operating assets and liabilities:
Accounts receivable	(10,234)	(1,214)
Unbilled contracts receivable, net	93,005	42,019
Other assets	(479)	4,104
Accounts payable	(872)	(1,258)
Accrued legal fees	(618)	(2,484)
Accrued and other liabilities	(18,129)	10,587
Deferred revenue	(1,451)	3,683
Net cash from operating activities	68,633	85,769
Cash flows from investing activities:
Purchases of property and equipment	(2,451)	(2,487)
Acquisition, net of cash acquired	(500)	0
Purchases of intangible assets	(3,350)	0
Purchases of investments	(20,095)	(22,572)
Proceeds from sales of property and equipment	0	40
Proceeds from sales of investments	19,675	1,035
Proceeds from maturities of investments	8,540	8,400
Net cash from investing activities	1,819	(15,584)
Cash flows from financing activities:
Dividend paid	(29,508)	(29,664)
Repayment of debt	(100,000)	(4,500)
Proceeds from exercise of stock options	8,004	4,827
Proceeds from employee stock purchase program	5,197	4,132
Repurchase of common stock	(40,539)	(13,531)
Net cash from financing activities	(156,846)	(38,736)
Net increase (decrease) in cash, cash equivalents and restricted cash	(86,394)	31,449
Cash and cash equivalents at beginning of period	138,260	65,626
Cash, cash equivalents and restricted cash at end of period	51,866	97,075
Supplemental disclosure of cash flow information:
Interest paid	16,949	21,258
Income taxes paid, net of refunds	$ 12,768	$ 11,614

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 51,866	$ 138,260
Investments	53,569	62,432
Accounts receivable, net	26,219	17,010
Unbilled contracts receivable	154,417	10,866
Other current assets	17,029	16,949
Total current assets	303,100	245,517
Long-term unbilled contracts receivable	59,797	2,930
Property and equipment, net	31,769	34,442
Intangible assets, net	353,847	431,789
Goodwill	385,784	385,574
Other assets	5,479	9,772
Total assets	1,139,776	1,110,024
Current liabilities:
Accounts payable	3,361	4,233
Accrued legal fees	6,865	7,483
Accrued liabilities	30,513	47,969
Current portion of long-term debt	0	34,451
Deferred revenue	452	2,686
Total current liabilities	41,191	96,822
Long-term deferred tax liabilities	58,112	15,085
Long-term debt, net	481,574	545,211
Other long-term liabilities	17,089	17,330
Commitments and contingencies (Note 13)
Stockholders’ equity:
Preferred stock: $0.001 par value; 10,000 shares authorized and no shares issued and outstanding	0	0
Common stock: $0.001 par value; 150,000 shares authorized; 62,158 and 60,608 shares issued, respectively, and 48,663 and 49,103 shares outstanding, respectively	62	60
Additional paid-in capital	721,939	686,660
Treasury stock at cost: 13,495 and 11,505 shares of common stock at each period end, respectively	(359,936)	(319,397)
Accumulated other comprehensive loss	(382)	(303)
Retained earnings	180,127	68,556
Total stockholders’ equity	541,810	435,576
Total liabilities and stockholders’ equity	$ 1,139,776	$ 1,110,024

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	62,158,000	60,608,000
Common stock, shares outstanding (in shares)	48,663,000	49,103,000
Treasury stock, shares (in shares)	13,495,000	11,505,000

Condensed Consolidated Statem_2

Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue:
Total revenue	$ 72,365	$ 88,508	$ 201,851	$ 247,085
Operating expenses:
Cost of revenue	5,003	1,667	9,407	4,370
Research, development and other related costs	24,189	25,840	75,874	78,165
Selling, general and administrative	28,084	33,995	93,262	108,202
Amortization expense	27,208	27,769	81,573	84,475
Litigation expense	7,642	9,163	21,593	27,368
Total operating expenses	92,126	98,434	281,709	302,580
Operating loss	(19,761)	(9,926)	(79,858)	(55,495)
Interest expense	(6,343)	(7,371)	(18,861)	(20,876)
Other income and expense, net	1,737	739	7,120	1,005
Loss before taxes	(24,367)	(16,558)	(91,599)	(75,366)
Benefit from income taxes	(2,591)	(4,442)	(8,550)	(13,164)
Net loss	$ (21,776)	$ (12,116)	$ (83,049)	$ (62,202)
Basic and diluted net loss per share:
Basic	$ (0.44)	$ (0.24)	$ (1.69)	$ (1.26)
Diluted	(0.44)	(0.24)	(1.69)	(1.26)
Cash dividends declared per share	$ 0.20	$ 0.20	$ 0.60	$ 0.60
Weighted average number of shares used in per share calculations-basic	48,958	49,469	49,005	49,293
Weighted average number of shares used in per share calculations-diluted	48,958	49,469	49,005	49,293
Royalty and License Fees
Revenue:
Total revenue	$ 72,365	$ 88,508	$ 201,851	$ 247,085

Condensed Consolidated Statem_3

Condensed Consolidated Statements Of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (21,776)	$ (12,116)	$ (83,049)	$ (62,202)
Other comprehensive income (loss):
Net unrealized gains (losses) on available-for-sale securities, net of tax	74	(16)	(79)	38
Other comprehensive income (loss)	74	(16)	(79)	38
Comprehensive loss	$ (21,702)	$ (12,132)	$ (83,128)	$ (62,164)

The Company And Basis Of Presen

The Company And Basis Of Presentation	9 Months Ended
	Sep. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
The Company And Basis Of Presentation	NOTE 1 – THE COMPANY AND BASIS OF PRESENTATION Xperi Corporation (the “Company”) completed the acquisition of DTS, Inc. ("DTS"), a publicly-traded developer of sound-based technologies, in December 2016. At the time of the acquisition, Tessera Technologies, Inc. and DTS were combined under the newly-formed Tessera Holding Corporation. During the first quarter of 2017, the Company introduced its new corporate name, Xperi Corporation, launched a new corporate logo, and began trading under a new ticker symbol XPER. Xperi Corporation licenses its innovative products, technologies and inventions to global electronics companies which, in turn, integrate the technologies into their own consumer electronics and semiconductor products. The Company's technologies and inventions are widely adopted and used every day by millions of people. The Company's audio technologies have shipped in billions of devices for the home, mobile and automotive markets. The Company's imaging technologies are embedded in more than 25% of smartphones on the market today. The Company's semiconductor packaging and interconnect technologies have been licensed to more than 100 customers and have shipped in over 100 billion semiconductor chips. The accompanying interim unaudited condensed consolidated financial statements as of September 30, 2018 and 2017, and for the three and nine months then ended, have been prepared by the Company in accordance with generally accepted accounting principles (“GAAP”) in the United States (“U.S.”) for interim financial information. The amounts as of December 31, 2017 have been derived from the Company’s annual audited financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted in accordance with such rules and regulations. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments necessary (consisting of normal recurring adjustments) to state fairly the financial position of the Company and its results of operations and cash flows as of and for the periods presented. These financial statements should be read in conjunction with the annual audited financial statements and notes thereto as of and for the year ended December 31, 2017, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017, filed on February 23, 2018 (the “Form 10-K”). The results of operations for the three and nine months ended September 30, 2018 are not necessarily indicative of the results that may be expected for the full year ended December 31, 2018 or any future period and the Company makes no representations related thereto. Reclassification Certain reclassifications have been made to prior period balances in order to conform to the current period’s presentation.

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2018
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	NOTE 2 – SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The Company’s significant accounting policies are detailed in "Note 2 - Summary of Significant Accounting Policies Revenue Recently Adopted Accounting Pronouncements In January 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (ASU 2016-01), which addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. – Financial Instruments In August 2016, the FASB issued Accounting Standards Update (“ASU”) No. 2016-15, “ Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments In October 2016, the FASB issued ASU No. 2016-16, " Intra-Entity Transfers of Assets Other Than Inventory In May 2017, the FASB issued ASU No. 2017-09, “ Compensation-Stock Compensation (Topic 718) Scope of Modification Accounting. In May 2014, the FASB issued ASU No. 2014-09 (Topic 606) " Revenue from Contracts with Customers Revenue The cumulative effect of the changes made to the Company's Condensed Consolidated Balance Sheet for the adoption of Topic 606 was as follows (in thousands): Balance at December 31, 2017 Adjustments due to Topic 606 Balance at January 1, 2018 Assets Unbilled contracts receivable $ 10,866 $ 188,760 $ 199,626 Other current assets 16,949 (2,000 ) 14,949 Long-term unbilled contracts receivable 2,930 103,983 106,913 Other assets 9,772 (2,446 ) 7,326 Liabilities Accrued liabilities 47,969 432 48,401 Deferred revenue 2,686 (783 ) 1,903 Long-term deferred tax liabilities 15,085 64,520 79,605 Equity Retained earnings 68,556 224,128 292,684 The most significant impact from adopting Topic 606 was a substantial increase in unbilled contracts receivable, long-term deferred tax liabilities and retained earnings, which was driven primarily by applying the standard on fixed fee and minimum guarantee contracts that were not completed as of December 31, 2017, and secondarily by recording to retained earnings those royalties from customer shipments completed in the fourth quarter of 2017 and reported to the Company in the first quarter of 2018. The adjustments noted above had no impact on the Company's Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2018. Adoption of the new revenue standard had the following impact on the Company's condensed consolidated financial statements as compared to the comparable data under the previous accounting standards (in thousands, except per share amounts): Three Months Ended September 30, 2018 Nine Months Ended September 30, 2018 STATEMENT OF OPERATIONS As Reported Amounts under Topic 605 Effect of Change Higher/(lower) As Reported Amounts under Topic 605 Effect of Change Higher/(lower) Royalty and license fees $ 72,365 $ 100,375 $ (28,010 ) $ 201,851 $ 293,251 $ (91,400 ) Cost of revenue 5,003 2,231 2,772 9,407 6,560 2,847 Operating income (loss) (19,761 ) 11,021 (30,782 ) (79,858 ) 14,390 (94,248 ) Other income and expense, net 1,737 160 1,577 7,120 1,245 5,875 Income (loss) before taxes (24,367 ) 4,839 (29,206 ) (91,599 ) (3,226 ) (88,373 ) Provision for (benefit from) income taxes (2,591 ) 1,956 (4,547 ) (8,550 ) 6,665 (15,215 ) Net income (loss) (21,776 ) 2,883 (24,659 ) (83,049 ) (9,891 ) (73,158 ) Basic net income (loss) per share $ (0.44 ) $ 0.06 $ (0.50 ) $ (1.69 ) $ (0.20 ) $ (1.49 ) As of September 30, 2018 BALANCE SHEET As Reported Amounts under Topic 605 Effect of Change Higher/(lower) Assets Unbilled contracts receivable $ 154,417 $ 4,653 $ 149,764 Other current assets 17,029 18,279 (1,250 ) Long-term unbilled contracts receivable 59,797 1,823 57,974 Other assets 5,479 7,545 (2,066 ) Liabilities Accrued liabilities 30,513 26,445 4,068 Deferred revenue 452 889 (437 ) Long-term deferred tax liabilities 58,112 8,358 49,754 Equity Retained earnings 180,127 29,090 151,037 Recent Accounting Pronouncements In February 2016, the FASB issued ASU No. 2016-02, " Leases" (Topic 842) Commitments and Contingencies In September 2016, the FASB issued ASU No. 2016-13, “ Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments In June 2018, the FASB issued ASU No. 2018-07, “ Stock-based Compensation: Improvements to Nonemployee Share-based Payment Accounting,”

Revenue

Revenue	9 Months Ended
	Sep. 30, 2018
Revenue From Contract With Customer [Abstract]
Revenue	NOTE 3 – REVENUE As discussed in Note 2, on January 1, 2018, the Company adopted Topic 606 using the modified retrospective method. Results for reporting periods beginning January 1, 2018 are presented under Topic 606, while prior period amounts are not restated and continue to be reported in accordance with the historic accounting under Topic 605. Revenue Recognition The Company derives its revenue primarily from royalty and license fees for rights to use the Company’s intellectual property and technologies (“IP”). Revenue is recognized upon transfer of control of promised products, services or IP rights to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products, services or licensing of the IP rights. Certain licensees have entered into fixed fee or minimum guarantee arrangements, whereby licensees pay a fixed fee for the right to incorporate the Company's technology in the licensee's products over the license term. In arrangements with a minimum guarantee, the fixed fee component corresponds to a minimum number of units or dollars that the customer must produce or pay, with additional per-unit fees for any units or dollars exceeding the minimum. In most cases, the customer pays the fixed license fee in specified installments over the license term. For these agreements, the Company recognizes the full fixed fee as revenue at the beginning of the license term, when the licensee has the right to use the IP and begins to benefit from the license. If the contract term of a fixed fee or minimum guarantee arrangement is longer than one year, the Company also considers the scheduled payment arrangements to determine whether a significant financing component exists. In general, if the payment arrangements extend beyond the initial twelve months of the contract, the Company treats a portion of the payments as a significant financing component. When the payments are expected to be received within one year or less, the Company does not adjust the promised amount of consideration for the effects of a financing component. The discount rate used for each arrangement reflects the rate that would be used in a separate financing transaction between the Company and the licensee at contract inception, and takes into account the credit characteristics of the licensee and market interest rates as of the date of the agreement. As such, the amount of fixed fee revenue recognized at the beginning of the license term will be reduced by the calculated financing component. As payments are received from the licensee, the Company recognizes a portion of the financing component as interest income, reported as other income and expense in the Condensed Consolidated Statements of Operations. For certain licensees, royalty revenues are generated based on a licensee's production or shipment of licensed products incorporating the Company’s IP, technologies or software. Licensees with a per-unit arrangement pay a per-unit royalty for each product manufactured or sold, as set forth in its license agreement. Licensees generally report manufacturing or sales information in the quarter subsequent to when the production or shipment activity takes place. The Company estimates the royalties earned each quarter based on its forecast of manufacturing and sales activity incurred by its licensees in that quarter. Any differences between actual royalties owed by a licensee and the Company’s quarterly estimate are recognized in the following quarter, when the licensee’s royalty report is received. Estimating licensees’ quarterly royalties prior to receiving the royalty reports requires the Company to make significant assumptions and judgments that could have a material impact on the amount of revenue it reports on a quarterly basis. The Company actively monitors and enforces its IP, including seeking appropriate compensation from customers that have under-reported royalties owed under a license agreement and from third parties that utilize the Company’s intellectual property without a license. As a result of these activities, the Company may, from time to time, recognize revenue from payments resulting from periodic compliance audits of licensees for underreporting royalties incurred in prior periods, as part of a settlement of a patent infringement dispute, or legal judgments from a license dispute. These recoveries and settlements may cause revenue to be higher than expected during a particular reporting period and such recoveries may not occur in subsequent periods. The Company recognizes revenue from recoveries when a binding agreement has been executed and the Company concludes collection under that agreement is likely. In some instances, the Company may enter into license agreements that contain multiple performance obligations that include engineering services in addition to a technology or software license. For such arrangements where all components are capable of being distinct and accounted for as separate performance obligations, the Company allocates revenue to each performance obligation based on its relative standalone selling price. The Company generally determines standalone selling prices based on the prices ordinarily charged to customers, or in some cases by applying a reasonable cost-plus margin. The consideration for engineering services is recognized as the underlying performance obligations are satisfied. Generally, the Company satisfies performance obligations over time and therefore recognizes revenue over time by measuring the progress toward completion of the performance obligation at each reporting period. From time to time, the Company enters into arrangements with licensees in which the Company pays consideration to the licensee. Such payments can take the form of marketing development funds or various rebate incentives. The Company typically accounts for consideration paid to its licensees as a reduction to the transaction price and revenue, unless the payment to the licensee is in exchange for a distinct good or service that the licensee transfers to the Company. In cases where the consideration paid to the licensee is variable, the Company estimates the variable consideration based on the terms of the arrangement and expectations of future outcomes. The Company recognizes the reduction to revenue when it recognizes revenue for transfer of control of promised products, services or IP rights to the licensee. Revenue is recognized gross of withholding taxes that are remitted directly by the Company's licensees directly to a local tax authority. For additional detail on the Company's revenue disaggregated by geographic location, refer to Note 14 - " Segment and Geographic Information Contract Balances Unbilled Contracts Receivable Timing of revenue recognition may differ significantly from the timing of invoicing to customers. Accounts receivable, net, includes amounts billed and currently due from customers. Unbilled contracts receivable represents unbilled amounts expected to be received from customers in future periods, where the revenue recognized to date (or cumulative adjustments to retained earnings in the initial period of adopting Topic 606) exceeds the amount billed, and right to payment is subject to the underlying contractual terms. Unbilled contracts receivable amounts may not exceed their net realizable value and are classified as long-term assets if the payments are expected to be received more than one year from the reporting date. Deferred Revenue Deferred revenue includes payments made by licensees for which the corresponding performance obligations have not yet been fully satisfied by the Company and typically arises where performance obligations are satisfied over time. Additional Disclosures Under Topic 606 The following table presents additional revenue and contract disclosures (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Revenue recognized in the period from: Amounts included in deferred revenue at the beginning of the period $ 3,852 $ 845 $ 1,602 $ 1,123 Performance obligations satisfied in previous periods (true ups and licensee reporting adjustments)* $ 3,375 $ 40 $ 3,001 $ 4,115 *True ups represent the differences between the Company’s quarterly estimates of per unit royalty revenue and actual production/sales-based royalties reported by licensees in the following period. Licensee reporting adjustments represent corrections or revisions to previously reported per unit royalties by licensees, generally resulting from the Company’s inquiries or compliance audits. Remaining revenue under contracts with performance obligations represents the aggregate amount of the transaction price allocated to the performance obligations that are unsatisfied (or partially unsatisfied) under the Company’s engineering services contracts. The Company's remaining revenue under contracts with performance obligations was as follows (in thousands): As of September 30, 2018 December 31, 2017 Revenue from contracts with performance obligations expected to be satisfied in: One year or less $ 3,420 $ 2,440 More than one year but less than two years 335 149 More than two years — 240 Total $ 3,755 $ 2,829 Practical Expedients The Company expenses sales commissions when incurred because the amortization period generally would have been one year or less. In addition, sales commissions have historically not been a significant expense and are not contemplated to be significant in the future. Sales commissions are recorded in selling, general and administrative expenses in the Condensed Consolidated Statement of Operations.

Composition Of Certain Financia

Composition Of Certain Financial Statement Captions	9 Months Ended
	Sep. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Composition Of Certain Financial Statement Captions	NOTE 4 – COMPOSITION OF CERTAIN FINANCIAL STATEMENT CAPTIONS Other current assets consisted of the following (in thousands): September 30, 2018 December 31, 2017 Prepaid income taxes $ 8,190 $ 6,713 Prepaid expenses 6,796 6,655 Other 2,043 3,581 $ 17,029 $ 16,949 Property and equipment, net, consisted of the following (in thousands): September 30, 2018 December 31, 2017 Equipment, furniture and other $ 28,378 $ 26,029 Building and improvements 18,258 18,222 Land 5,300 5,300 Leasehold improvements 6,443 6,469 58,379 56,020 Less: accumulated depreciation and amortization (26,610 ) (21,578 ) $ 31,769 $ 34,442 Depreciation and amortization expense for the three months ended September 30, 2018 and 2017 amounted to $1.6 million and $1.7 million, respectively. Depreciation and amortization expense for the nine months ended September 30, 2018 and 2017 amounted to $5.1 million and $5.4 million, respectively. Accrued liabilities consisted of the following (in thousands): September 30, 2018 December 31, 2017 Employee compensation and benefits $ 16,691 $ 37,056 Other 13,822 10,913 $ 30,513 $ 47,969 Accumulated other comprehensive loss consisted of the following (in thousands): September 30, 2018 December 31, 2017 Unrealized loss on available-for-sale securities, net of tax $ (382 ) $ (303 ) $ (382 ) $ (303 ) Other income and expense, net, consisted of the following (in thousands): Three Months Ended, Nine Months Ended, September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Interest income from significant financing components under Topic 606 $ 1,577 $ — $ 5,876 $ — Interest income from investments 233 269 697 731 Unrealized loss on marketable equity securities (566 ) — (566 ) — Other income (losses) 493 470 1,113 274 $ 1,737 $ 739 $ 7,120 $ 1,005

Financial Instruments

Financial Instruments	9 Months Ended
	Sep. 30, 2018
Investments Debt And Equity Securities [Abstract]
Financial Instruments	NOTE 5 – FINANCIAL INSTRUMENTS The Company has investments in debt securities which include corporate bonds and notes, treasury and agency notes and bills, commercial paper, certificates of deposit, and in equity securities consisting of money market funds and common equity securities of a publicly traded Japanese company. The Company classifies its debt securities as available-for-sale, which are accounted for at fair value with unrealized gains and losses recognized in accumulated other comprehensive gain or loss on the Condensed Consolidated Balance Sheets. Prior to January 1, 2018, the Company accounted for equity securities in the same manner as debt securities. Realized gains and losses on equity securities sold, if any, were recognized in other income and expense, net, on the Condensed Consolidated Statement of Operations. On January 1, 2018, the Company adopted ASU 2016-01 (Topic 321) which requires equity securities to be measured at fair value and starting January 1, 2018 unrealized gains and losses are recognized in other income and expense, net, on the Condensed Consolidated Statement of Operations. The following is a summary of marketable securities at September 30, 2018 and December 31, 2017 (in thousands): September 30, 2018 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Marketable securities Corporate bonds and notes $ 33,893 $ — $ (306 ) $ 33,587 Commercial paper 8,962 — (5 ) 8,957 Treasury and agency notes and bills 6,000 — (71 ) 5,929 Total debt securities 48,855 — (382 ) 48,473 Money market funds 67 — — 67 Marketable equity securities 5,662 — (566 ) 5,096 Total equity securities 5,729 — (566 ) 5,163 Total marketable securities $ 54,584 $ — $ (948 ) $ 53,636 Reported in: Cash and cash equivalents $ 67 Investments 53,569 Total marketable securities $ 53,636 December 31, 2017 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Marketable securities Corporate bonds and notes $ 45,803 $ — $ (230 ) $ 45,573 Commercial paper 2,392 — (2 ) 2,390 Treasury and agency notes and bills 6,000 — (71 ) 5,929 Certificates of deposit 8,540 — — 8,540 Total debt securities 62,735 — (303 ) 62,432 Money market funds - equity securities 40,413 — — 40,413 Total marketable securities $ 103,148 $ — $ (303 ) $ 102,845 Reported in: Cash and cash equivalents $ 40,413 Investments 62,432 Total marketable securities $ 102,845 At September 30, 2018 and December 31, 2017, the Company had $105.4 million and $200.7 million, respectively, in cash, cash equivalents and investments. These balances include $51.8 million and $97.8 million in cash held in operating accounts not included in the tables above at September 30, 2018 and December 31, 2017, respectively. Debt Securities The gross realized gains and losses on sales of marketable debt securities were not significant during the three and nine months ended September 30, 2018 and 2017, respectively. Unrealized losses on marketable debt securities were $0.4 million and $0.3 million, net of tax, as of September 30, 2018 and December 31, 2017, respectively. These amounts were related to temporary fluctuations in value of available-for-sale securities and were due primarily to changes in interest rates and market and credit conditions of the underlying securities. Certain investments with a temporary decline in value are not considered to be other-than-temporarily impaired as of September 30, 2018 because the Company has the intent and ability to hold these investments to allow for recovery, does not anticipate having to sell these securities with unrealized losses and continues to receive interest at the maximum contractual rate. For the three and nine months ended September 30, 2018 and 2017, respectively, the Company did not record any impairment charges related to its marketable debt securities. The following table summarizes the fair value and gross unrealized losses related to individual available-for-sale securities at September 30, 2018 and December 31, 2017, which have been in a continuous unrealized loss position, aggregated by investment category and length of time (in thousands): Less Than 12 Months 12 Months or More Total September 30, 2018 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate bonds and notes $ 19,868 $ (136 ) $ 13,719 $ (170 ) $ 33,587 $ (306 ) Commercial paper 8,957 (5 ) — — 8,957 (5 ) Treasury and agency notes and bills — — 5,929 (71 ) 5,929 (71 ) Total $ 28,825 $ (141 ) $ 19,648 $ (241 ) $ 48,473 $ (382 ) Less Than 12 Months 12 Months or More Total December 31, 2017 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate bonds and notes $ 30,811 $ (189 ) $ 14,762 $ (41 ) $ 45,573 $ (230 ) Commercial paper 2,390 (2 ) — — 2,390 (2 ) Treasury and agency notes and bills — — 5,929 (71 ) 5,929 (71 ) Total $ 33,201 $ (191 ) $ 20,691 $ (112 ) $ 53,892 $ (303 ) The estimated fair value of marketable debt securities by contractual maturity at September 30, 2018 is shown below (in thousands). Actual maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations without call or prepayment penalties. Estimated Fair Value Due in one year or less $ 33,565 Due in one to two years 14,908 Due in two to three years — Total $ 48,473 Equity Securities There were no realized gains or losses on sales of equity securities during the three and nine months ended September 30, 2018 and 2017. The Company had unrealized losses of $0.6 million and $0.6 million on marketable equity securities during the three and nine months ended September 30, 2018, respectively, and none for the three and nine months ended September 30, 2017. On September 19, 2018, the Company purchased seven million common shares of Onkyo Corporation (“Onkyo”), a publicly traded Japanese company, pursuant to the Capital Alliance Agreement (“Agreement”) entered into between the two parties on September 3, 2018. Upon making the investment, the Company holds a 6.3% ownership interest in Onkyo and expects to have one representative appointed to the board of directors of a subsidiary of Onkyo. The Company also expects to have one representative appointed to serve on the board of directors of Onkyo effective with its next scheduled shareholders meeting in June 2019. The Agreement contemplates that the parties will negotiate a business alliance agreement aimed at collaborating on certain new product development within IOT, AI and wireless audio. Onkyo is a long-term customer of the Company.

Fair Value

Fair Value	9 Months Ended
	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value	NOTE 6 – FAIR VALUE The Company follows the authoritative guidance for fair value measurement and the fair value option for financial assets and financial liabilities. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability, or an exit price, in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The established fair value hierarchy requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. There are three levels of inputs that may be used to measure fair value: Level 1 Quoted prices in active markets for identical assets. Level 2 Observable market-based inputs or unobservable inputs that are corroborated by market data. Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation. When applying fair value principles in the valuation of assets, the Company is required to maximize the use of quoted market prices and minimize the use of unobservable inputs. The Company calculates the fair value of its Level 1 and Level 2 instruments based on the exchange traded price of similar or identical instruments, where available, or based on other observable inputs. There were no significant transfers into or out of Level 1 or Level 2 that occurred between December 31, 2017 and September 30, 2018. The following is a list of the Company’s assets required to be measured at fair value on a recurring basis and where they were classified within the hierarchy as of September 30, 2018 (in thousands): Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets Marketable securities Money market funds - equity securities (1) $ 67 $ 67 $ — $ — Marketable equity securities (2) 5,096 5,096 — — Commercial paper - debt securities (2) 8,957 — 8,957 — Corporate bonds and notes - debt securities (2) 33,587 — 33,587 — Treasury and agency notes and bills - debt securities (2) 5,929 — 5,929 — Total Assets $ 53,636 $ 5,163 $ 48,473 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at September 30, 2018: (1) Reported as cash and cash equivalents. (2) Reported as investments. The following is a list of the Company’s assets required to be measured at fair value on a recurring basis and where they were classified within the hierarchy as of December 31, 2017 (in thousands): Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets Marketable securities Money market funds - equity securities (1) $ 40,413 $ 40,413 $ — $ — Certificates of deposit - debt securities (2) 8,540 — 8,540 — Corporate bonds and notes - debt securities (2) 45,573 — 45,573 — Treasury and agency notes and bills - debt securities (2) 5,929 — 5,929 — Commercial paper - debt securities (2) 2,390 — 2,390 — Total Assets $ 102,845 $ 40,413 $ 62,432 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at December 31, 2017: (1) Reported as cash and cash equivalents. (2) Reported as investments. The Company also has outstanding debt at September 30, 2018 and December 31, 2017 that is considered a level 2 liability and is measured at fair value on a recurring basis. See “Note 8 - Debt

Goodwill And Identified Intangi

Goodwill And Identified Intangible Assets	9 Months Ended
	Sep. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill And Identified Intangible Assets	NOTE 7 – GOODWILL AND IDENTIFIED INTANGIBLE ASSETS The changes to the carrying value of goodwill from January 1, 2018 through September 30, 2018 are reflected below (in thousands): December 31, 2017 $ 385,574 Goodwill acquired through a business acquisition (1) 210 September 30, 2018 $ 385,784 (2) (1) Related to the acquisition of an emerging technology company in May 2018. (2) Of this amount, approximately $378.1 million was allocated to the Product Licensing segment and approximately $7.7 million was allocated to the Semiconductor and IP Licensing segment. Identified intangible assets consisted of the following (in thousands): Average September 30, 2018 December 31, 2017 Life (Years) Gross Assets Accumulated Amortization Net Gross Assets Accumulated Amortization Net Acquired patents / core technology 3-15 $ 145,934 $ (125,149 ) $ 20,785 $ 142,584 $ (113,349 ) $ 29,235 Existing technology 5-10 206,879 (87,389 ) 119,490 204,394 (61,518 ) 142,876 Customer contracts and related relationships 3-9 291,769 (108,440 ) 183,329 291,769 (68,267 ) 223,502 Trademarks/trade name 4-10 40,083 (9,840 ) 30,243 40,083 (6,111 ) 33,972 Non-competition agreements 1 2,231 (2,231 ) — 2,231 (2,231 ) — Total amortizable intangible assets 686,896 (333,049 ) 353,847 681,061 (251,476 ) 429,585 In-process research and development — — — 2,204 — 2,204 Total intangible assets $ 686,896 $ (333,049 ) $ 353,847 $ 683,265 $ (251,476 ) $ 431,789 Amortization expense for the three months ended September 30, 2018 and 2017 amounted to $27.2 million and $27.8 million, respectively. Amortization expense for the nine months ended September 30, 2018 and 2017 amounted to $81.6 million and $84.5 million, respectively. As of September 30, 2018, the estimated future amortization expense of total intangible assets was as follows (in thousands): 2018 (remaining 3 months) $ 26,854 2019 99,852 2020 88,137 2021 80,428 2022 31,989 Thereafter 26,587 $ 353,847

Debt

Debt	9 Months Ended
	Sep. 30, 2018
Debt Disclosure [Abstract]
Debt	NOTE 8 - DEBT On December 1, 2016, in connection with the consummation of the acquisition of DTS, the Company entered into a Credit Agreement (the “Credit Agreement”) by and among the Company, Royal Bank of Canada, as administrative agent and collateral agent, and the lenders party thereto. The Credit Agreement provided for a $600.0 million seven-year term B loan facility (the “Term B Loan Facility”) which matures on November 30, 2023. Upon the closing of the Credit Agreement, the Company borrowed $600.0 million under the Term B Loan facility. Net proceeds were used on December 1, 2016, together with cash and cash equivalents, to finance the acquisition of DTS. On January 23, 2018, the Company and the loan parties entered into an amendment to the Credit Agreement (the “Amendment”). In connection with the Amendment, the Company made a voluntary prepayment of $100.0 million of the term loan outstanding under the Credit Agreement using cash on hand. The Amendment provided for, among other things, (i) a replacement of the outstanding initial term loan with the new tranche term B-1 loan (the “Amended Term B Loan”) in a principal amount of $494.0 million, (ii) a reduction of the interest rate margin applicable to such loan to (x) in the case of Eurodollar loans, 2.50% per annum and (y) in the case of base rate loans, 1.50% per annum, (iii) a prepayment premium of 1.00% in connection with any repricing transaction with respect to the Amended Term B Loan within six months of the closing date of the Amendment, and (iv) certain amendments to provide the Company with additional flexibility under the covenant governing restricted payments. The Company’s obligations under the Credit Agreement, as amended by the Amendment, continue to be guaranteed by substantially all of the Company’s subsidiaries, and secured by substantially all of the assets of the Company and its subsidiaries. The Credit Agreement contains customary events of default, upon the occurrence of which, after any applicable grace period, the lenders will have the ability to accelerate all outstanding loans thereunder. The Credit Agreement contains customary representations and warranties and affirmative and negative covenants that, among other things, restrict the ability of the Company to create or incur certain liens, incur or guarantee additional indebtedness, merge or consolidate with other companies, transfer or sell assets and make restricted payments. The Company was in compliance with all requirements during the three and nine months ended September 30, 2018. All lenders of the Term B Loan Facility participated in the Amendment and the changes in terms were not considered substantial. Accordingly, the repricing event was accounted for as a debt modification. The Company elected to continue to defer the unamortized debt issuance costs related to the partial pay-down of the debt as the prepayment was factored into the terms agreed to on the debt. At September 30, 2018, $494.0 million was outstanding with an interest rate, including the amortization of debt issuance costs, of 5.1%. Interest is payable monthly. There were also $12.4 million of unamortized debt issuance costs recorded as a reduction of the long-term portion of the debt. Interest expense was $6.3 million and $18.9 million for the three and nine months ended September 30, 2018, respectively. Interest expense was $7.4 million and $20.9 million for the three and nine months ended September 30, 2017, respectively. Amortized debt issuance costs, which were included in interest expense, amounted to $0.6 million and $1.9 million for the three and nine months ended September 30, 2018, respectively, and $0.6 million and $1.8 million for the three and nine months ended September 30, 2017, respectively. Other than the voluntary prepayment of $100.0 million in January 2018, there were no other debt principal payments in the first three quarters of 2018 as the prepayment exceeded the minimum principal payment requirements. There were debt principal payments of $1.5 million and $4.5 million during the three and nine months ended September 30, 2017, respectively. As of September 30, 2018, future minimum principal payments for long-term debt are summarized as follows (in thousands): 2018 (remaining 3 months) $ — 2019 — 2020 — 2021 — 2022 — Thereafter 494,000 Total $ 494,000

Net Loss Per Share

Net Loss Per Share	9 Months Ended
	Sep. 30, 2018
Earnings Per Share [Abstract]
Net Loss Per Share	NOTE 9 – NET LOSS PER SHARE The Company has a share-based compensation plan under which employees may be granted share-based awards including shares of restricted stock and restricted stock units ("RSUs"). Non-forfeitable dividends are paid on unvested shares of restricted stock. No dividends are accrued or paid on unvested RSUs. As such, shares of restricted stock are considered participating securities under the two-class method of calculating earnings per share. The two-class method of calculating earnings per share did not have a material impact on the Company’s loss per share calculation for the three and nine months ended September 30, 2018 and 2017. The following table sets forth the computation of basic and diluted shares (in thousands): Three Months Ended Nine Months Ended September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Denominator: Weighted average common shares outstanding 48,958 49,469 49,005 49,296 Less: shares of restricted stock subject to repurchase — — — (3 ) Total common shares-basic 48,958 49,469 49,005 49,293 Effect of dilutive securities: Options — — — — Restricted stock awards and units — — — — Total common shares-diluted 48,958 49,469 49,005 49,293 Basic net income (loss) per share is computed using the weighted average number of common shares outstanding during the period, excluding any unvested restricted stock awards that are subject to repurchase. Diluted net income (loss) per share is computed using the treasury stock method to calculate the weighted average number of common shares and, if dilutive, potential common shares outstanding during the period. Potential dilutive common shares include unvested restricted stock awards and units and incremental common shares issuable upon the exercise of stock options, less shares from assumed proceeds. The assumed proceeds calculation includes actual proceeds to be received from the employee upon exercise and the average unrecognized stock compensation cost during the period. For the three and nine months ended September 30, 2018, there was no difference in the weighted average number of common shares used for the calculation of basic and diluted loss per share as the effect of all potentially dilutive shares outstanding was anti-dilutive. A total of 2.8 million and 2.8 million shares subject to stock options and restricted stock awards and units were excluded from the computation of diluted net loss per share for the three and nine months ended September 30, 2018, respectively, because including them would have been anti-dilutive. For the three and nine months ended September 30, 2017, there was no difference in the weighted average number of common shares used for the calculation of basic and diluted loss per share as the effect of all potentially dilutive shares outstanding was anti-dilutive. A total 2.7 million and 1.8 million shares subject to stock options and restricted stock awards and units were excluded from the computation of diluted net loss per share for the three and nine months ended September 30, 2017, respectively, because including them would have been anti-dilutive.

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stockholders' Equity	NOTE 10 – STOCKHOLDERS’ EQUITY Stock Repurchase Programs In August 2007, the Company’s Board of Directors (“the Board”) authorized a plan to repurchase the Company’s outstanding shares of common stock dependent on market conditions, share price and other factors. As of September 30, 2018, the Company has repurchased a total of approximately 12,974,000 shares of common stock, since inception of the plan, at an average price of $26.54 per share for a total cost of $344.4 million. As of December 31, 2017, the Company had repurchased a total of approximately 11,142,000 shares of common stock, since inception of the plan, at an average price of $27.57 per share for a total cost of $307.2 million. The shares repurchased are recorded as treasury stock and are accounted for under the cost method. No expiration date has been specified for this plan. As of September 30, 2018, the total remaining amount available for repurchase was $105.6 million. The Company plans to continue to execute authorized repurchases from time to time under the plan. Stock Option Plans The 2003 Plan As of September 30, 2018, there were approximately 3.5 million shares reserved for future grant under the Company’s 2003 Equity Incentive Plan (the “2003 Plan”). A summary of the stock option activity is presented below (in thousands, except per share amounts): Options Outstanding Number of Shares Subject to Options Weighted Average Exercise Price Per Share Balance at December 31, 2017 1,172 $ 24.06 Options granted — — Options exercised (427 ) $ 18.76 Options canceled / forfeited / expired (60 ) $ 35.16 Balance at September 30, 2018 685 $ 26.39 Restricted Stock Awards and Units Information with respect to outstanding restricted stock awards and units as of September 30, 2018 is as follows (in thousands, except per share amounts): Restricted Stock and Restricted Stock Units Number of Shares Subject to Time- based Vesting Number of Shares Subject to Performance- based Vesting Total Number of Shares Weighted Average Grant Date Fair Value Per Share Balance at December 31, 2017 2,014 1,119 3,133 $ 33.35 Awards and units granted 1,067 45 1,112 $ 21.96 Awards and units vested / earned (641 ) (176 ) (817 ) $ 34.86 Awards and units canceled / forfeited (160 ) (230 ) (390 ) $ 29.61 Balance at September 30, 2018 2,280 758 3,038 $ 29.26 Performance Awards and Units Performance awards and units may be granted to employees or consultants based upon, among other things, the contributions, responsibilities and other compensation of the particular employee or consultant. The value and the vesting of such performance awards and units are generally linked to one or more performance goals or other specific performance goals determined by the Company, in each case on a specified date or dates or over any period or periods determined by the Company, and range from zero to 100 percent of the grant. Employee Stock Purchase Plans As of September 30, 2018, there were approximately 1,137,000 shares reserved for grant under the Company’s 2003 Employee Stock Purchase Plan (the “ESPP”) and the International Employee Stock Purchase Plan (the “International ESPP”), collectively.

Stock-Based Compensation Expens

Stock-Based Compensation Expense	9 Months Ended
	Sep. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation Expense	NOTE 11 – STOCK-BASED COMPENSATION EXPENSE The effect of recording stock-based compensation expense for the three and nine months ended September 30, 2018 and 2017 is as follows (in thousands): Three Months Ended Nine Months Ended September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Research, development and other related costs $ 3,252 $ 3,290 $ 9,690 $ 9,424 Selling, general and administrative 4,201 5,086 12,390 14,537 Total stock-based compensation expense 7,453 8,376 22,080 23,961 Tax effect on stock-based compensation expense (1,177 ) (2,295 ) (3,592 ) (6,685 ) Net effect on net income (loss) $ 6,276 $ 6,081 $ 18,488 $ 17,276 Stock-based compensation expense categorized by various equity components for the three and nine months ended September 30, 2018 and 2017 is summarized in the table below (in thousands): Three Months Ended Nine Months Ended September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Employee stock options $ 79 $ 536 $ 362 $ 1,767 Restricted stock awards and units 7,060 7,091 19,870 20,378 Employee stock purchase plan 314 749 1,848 1,816 Total stock-based compensation expense $ 7,453 $ 8,376 $ 22,080 $ 23,961 There were no options granted in the three and nine months ended September 30, 2018 and 2017. ESPP grants occur in February and August. The following assumptions were used to value the ESPP shares for these grants: August 2018 August 2017 Expected life (years) 2.0 2.0 Risk-free interest rate 2.7 % 1.3 % Dividend yield 3.9 % 2.5 % Expected volatility 41.7 % 30.8 %

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 12 – INCOME TAXES For the three months ended September 30, 2018, the Company recorded an income tax benefit of $2.6 million on a pretax loss of $24.4 million and for the nine months ended September 30, 2018, the Company recorded an income tax benefit of $8.6 million on a pretax loss of $91.6 million, which resulted in an effective tax rate year to date of 9.3%. The income tax benefit for the three and nine months ended September 30, 2018 was primarily related to tax benefit from losses and credits generated from operations offset by foreign withholding taxes, certain book-to-tax permanent differences, valuation allowance recorded against the Company’s unutilized tax credits generated in the current year, and shortfalls from stock-based compensation. For the three months ended September 30, 2017, the Company recorded an income tax benefit of $4.4 million, and for the nine months ended September 30, 2017, the Company recorded an income tax benefit of $13.2 million, which resulted in an effective tax rate year to date of 17.5%. The income tax benefit of $4.4 million and $13.2 million for the three and nine months ended September 30, 2017, respectively, was primarily related to losses generated in the U.S. and foreign operations offset by foreign withholding taxes. The Company's provision for income taxes is based on its worldwide estimated annualized effective tax rate, except for jurisdictions for which a loss is expected for the year and no benefit can be realized for those losses, and the tax effect of discrete items occurring during the period. The tax for jurisdictions for which a loss is expected and no benefit can be realized for the year is based on actual taxes and tax reserves for the quarter. The decrease in income tax benefit for the nine months ended September 30, 2018 as compared to the income tax benefit during the same period in the prior year is largely attributable to valuation allowance recorded against the Company’s tax credits. As of September 30, 2018, unrecognized tax benefits were $34.4 million (which is included in long-term deferred tax and other liabilities on the Condensed Consolidated Balance Sheet), of which $22.2 million would affect the effective tax rate if recognized. As of September 30, 2017, unrecognized tax benefits were $31.1 million (which was included in long-term deferred tax and other liabilities on the Condensed Consolidated Balance Sheet), of which $24.4 million would affect the effective tax rate if recognized. The Company is unable to reasonably estimate the timing of the long-term payments or the amount by which the liability will increase or decrease. It is the Company's policy to classify accrued interest and penalties related to unrecognized tax benefits in the provision for income taxes. For the nine months ended September 30, 2018 and 2017, the Company recognized an insignificant amount of interest and penalties related to unrecognized tax benefits. Accrued interest and penalties were $0.8 million and $0.6 million as of September 30, 2018 and December 31, 2017, respectively. At September 30, 2018, the Company's 2013 through 2017 tax years were open and subject to potential examination in one or more jurisdictions. In addition, in the U.S., any net operating losses or credits that were generated in prior years but not yet fully utilized in a year that is closed under the statute of limitations may also be subject to examination. Two of the Company’s subsidiaries are currently under tax examination, one by the Internal Revenue Service for tax year 2014 and another in Japan for the years 2015 to 2017. The Company cannot estimate the financial outcome of these examinations. On December 22, 2017, the Tax Cut and Jobs Act (“Tax Act”) was signed into law. The Tax Act introduced a broad range of tax reform measures that significantly change the federal income tax laws. As of December 31, 2017, the Company recorded a provisional tax expense in the Statement of Operations of approximately $5.6 million, comprised of approximately $13.5 million tax expense from recording additional valuation allowance against federal tax credits due to certain provisions of the Tax Act, offset by approximately $7.9 million of tax benefit from the remeasurement of U.S. deferred taxes using the relevant tax rate at which the Company expects them to reverse in the future. The estimated one-time transition tax on post-1986 foreign unremitted earnings is not anticipated to have a material impact to the Company's effective tax rate. As of September 30, 2018, the Company has not completed its accounting related to tax reform, and therefore has not recorded any adjustments to the provisional tax expense. The Company continues to monitor supplemental legislation and technical interpretations of the tax law that may cause the final impact from the Tax Act to differ from the provisionally recorded amounts. The Company expects to complete its analysis within the measurement period allowed by Staff Accounting Bulletin (“SAB”) No.118, no later than the fourth quarter of 2018.

Commitments And Contingencies

Commitments And Contingencies	9 Months Ended
	Sep. 30, 2018
Commitments And Contingencies Disclosure [Abstract]
Commitments And Contingencies	NOTE 13 – COMMITMENTS AND CONTINGENCIES Lease Commitments The Company leases office and research facilities and office equipment under operating leases which expire at various dates through 2029. Under lease agreements that contain escalating rent provisions, lease expense is recorded on a straight-line basis over the lease term. There were no material changes to our future minimum lease payments during the three and nine months ended September 30, 2018. Rent expense for the three months ended September 30, 2018 and 2017 amounted to $1.8 million and $1.6 million, respectively. Rent expense for the nine months ended September 30, 2018 and 2017 amounted to $5.4 million and $4.7 million, respectively. Contingencies At each reporting period, the Company evaluates whether or not a potential loss amount or a potential range of loss is probable and reasonably estimable under the provisions of the authoritative guidance that addresses accounting for contingencies. The Company is currently unable to predict the final outcome of lawsuits to which it is a party and therefore cannot determine the likelihood of loss nor estimate a range of possible loss. An adverse decision in any of these proceedings could significantly harm the Company’s business and consolidated financial position, results of operations or cash flows. Tessera, Inc. v. Toshiba Corporation, Civil Action No. 5:15-cv-02543-BLF (N.D. Cal.) On May 12, 2015, Tessera, Inc. filed a complaint against Toshiba Corporation (“Toshiba”) in California Superior Court. Tessera, Inc.’s complaint alleges causes of action for breach of contract, breach of the implied covenant of good faith and fair dealing, and declaratory relief, generally alleging that Toshiba underpaid royalties and failed to cooperate with audits conducted pursuant to the parties’ license agreement. On June 8, 2015, Toshiba removed the action to the U.S. District Court for the Northern District of California. On June 18, 2015, Toshiba filed its answer, affirmative defenses, and counterclaims to Tessera, Inc.’s complaint. Toshiba alleges counterclaims for declaratory judgment and breach of the implied warranty of good faith and fair dealing. The counterclaims seek, among other things, judicial determinations about the interpretation of the parties’ agreement, termination of the agreement, an accounting of the amount of alleged overpayments by Toshiba, restitution, and damages. On July 10, 2015, Tessera, Inc. filed its answer and affirmative defenses to Toshiba’s counterclaims. On March 17, 2016, Tessera, Inc. filed an amended complaint adding a claim for declaratory relief regarding a February 12, 2016 letter sent by Toshiba to Tessera, Inc. purporting to terminate the parties’ license agreement. On March 18, 2016, Toshiba filed its amended answer, affirmative defenses, and counterclaims. On April 4, 2016, Tessera, Inc. filed an answer to Toshiba’s amended counterclaims. An initial summary judgment hearing on contract issues took place on September 22, 2016. On November 7, 2016, the Court entered an order granting Toshiba’s motion regarding the definition of “TCC,” and denying summary judgment on the other issues raised by the parties’ cross-motions. On December 6, 2016, Tessera, Inc. filed a motion pursuant to Federal Rule of Civil Procedure 54(b) seeking authorization to appeal the order and for a stay. On March 6, 2017, the Court granted the Rule 54(b) motion. The Court subsequently vacated the trial date and stayed the remainder of the district court proceedings. On April 4, 2017, Tessera, Inc. filed a notice of appeal to the U.S. Court of Appeals for the Ninth Circuit. The parties completed briefing on November 2, 2017. A hearing for oral argument took place on October 15, 2018. Samsung Electronics Co., Ltd. v. Panasonic Corporation (f/k/a Matsushita Electric Industrial Co.), Ltd., Pannova Semic, LLC, and Tessera Advanced Technologies, Inc. (International Chamber of Commerce) On May 18, 2018, Samsung Electronics Co., Ltd. (“Samsung”) filed a Request for Arbitration against Tessera Advanced Technologies, Inc. (“Tessera”), Panasonic Corporation (f/k/a Matsushita Electric Industrial Co.) (“Panasonic”) and Pannova Semic, LLC (“Pannova”) with the International Chamber of Commerce. The Request seeks declaratory judgments that Samsung has a license to practice U.S. Patent Nos. 6,954,001, 6,784,557, 6,512,298, and 6,852,616 (“Patents-in-Suit”); damages of at least $15 million for alleged breach of contract; and a declaratory judgment that Panasonic’s assignment of the Patents-in-Suit is null and void. The Request further seeks an order requiring reimbursement to Samsung of all expenses, including attorneys’ fees, incurred in defending against lawsuits that Tessera or its affiliates filed in various jurisdictions. On June 25, 2018, Tessera and Pannova filed a Response to the Request for Arbitration, objecting to the jurisdiction of the Tribunal and denying the merits of Samsung’s claims. Other Litigation Matters The Company and its subsidiaries are involved in litigation matters and claims in the normal course of business. In the past, the Company and its subsidiaries have litigated to enforce their respective patents and other intellectual property rights, to enforce the terms of license agreements, to protect trade secrets, to determine the validity and scope of the proprietary rights of others and to defend itself or its customers against claims of infringement or invalidity. The Company expects it or its subsidiaries will be involved in similar legal proceedings in the future, including proceedings regarding infringement of its patents, and proceedings to ensure proper and full payment of royalties by licensees under the terms of its license agreements. The existing and any future legal actions may harm the Company’s business. For example, legal actions could cause an existing licensee or strategic partner to cease making royalty or other payments to the Company, or to challenge the validity and enforceability of patents owned by the Company’s subsidiaries or the scope of license agreements with the Company’s subsidiaries, and could significantly damage the Company’s relationship with such licensee or strategic partner and, as a result, prevent the adoption of the Company’s other technologies by such licensee or strategic partner. Litigation could also severely disrupt or shut down the business operations of licensees or strategic partners of the Company’s subsidiaries, which in turn would significantly harm ongoing relations with them and cause the Company to lose royalty revenue. The costs associated with legal proceedings are typically high, relatively unpredictable, and not completely within the Company’s control. These costs may be materially higher than expected, which could adversely affect the Company’s operating results and lead to volatility in the price of its common stock. Whether or not determined in the Company’s favor or ultimately settled, litigation diverts managerial, technical, legal, and financial resources from the Company’s business operations. Furthermore, an adverse decision in any of these legal actions could result in a loss of the Company’s proprietary rights, subject the Company to significant liabilities, require the Company to seek licenses from others, limit the value of the Company’s licensed technology or otherwise negatively impact the Company’s stock price or its business and consolidated financial position, results of operations or cash flows.

Segment And Geographic Informat

Segment And Geographic Information	9 Months Ended
	Sep. 30, 2018
Segment Reporting [Abstract]
Segment And Geographic Information	NOTE 14 – SEGMENT AND GEOGRAPHIC INFORMATION The Company reports its financial results within two reportable segments: (1) Product Licensing and (2) Semiconductor and IP Licensing. There are certain corporate overhead costs that are not allocated to these reportable segments because these operating amounts are not considered in evaluating the operating performance of the Company’s business segments. The Chief Executive Officer is also the Chief Operating Decision Maker (“CODM”) as defined by the authoritative guidance on segment reporting. The Product Licensing segment, including the Company's DTS and FotoNation subsidiaries, licenses its technologies and intellectual property related to audio, digital radio and imaging solutions under the brands DTS, HD Radio and FotoNation. The Product Licensing solutions typically include the delivery of software or hardware-based solutions, combined with various other intellectual property, including know how, patents, trademarks, and copyrights. Product Licensing represents revenue derived primarily from the consumer electronics market and related applications servicing the home, automotive and mobile markets. The Semiconductor and IP Licensing segment develops and licenses semiconductor technologies and IP to manufacturers, foundries, subcontract assemblers and others. The segment includes revenue generated from the technology and IP portfolios of Tessera, Inc., Invensas and Invensas Bonding Technologies, Inc. (formally Ziptronix, Inc.). Tessera, Inc. pioneered chip-scale packaging solutions. Invensas develops advanced semiconductor packaging and 3D interconnect solutions, including wafer bonding solutions, for applications such as smartphones, tablets, laptops, PCs, data centers and automobiles. The Company expands its technology and IP offerings in this segment through a combination of internal R&D and acquisitions. The Company also provides engineering services to customers in the form of technology demonstrations and technology transfers to assist their evaluation and adoption of the Company's technologies. Through the Company’s technology transfer service, the Company provides detailed documentation outlining design guidelines, process specifications, recommended equipment and process parameters as well as hands-on engineering support to assist its licensees in bringing up and qualifying its technologies at their facilities. This service allows licensees to readily leverage the Company’s years of experience and expertise in direct and hybrid bonding. The Company does not identify or allocate assets by reportable segment, nor does the CODM evaluate reportable segments using discrete asset information. Reportable segments do not record inter-segment revenue and accordingly there are none to report. The Company does not allocate other income and expense to reportable segments. Although the CODM uses operating income to evaluate reportable segments, operating costs included in one segment may benefit other segments. The following table sets forth the Company’s segment revenue, operating expenses and operating income (loss) for the three and nine months ended September 30, 2018 and 2017 (in thousands): Three Months Ended Nine Months Ended September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Revenue: Product licensing segment $ 60,378 $ 42,780 $ 164,755 $ 116,843 Semiconductor and IP licensing segment 11,987 45,728 37,096 130,242 Total revenue 72,365 88,508 201,851 247,085 Operating expenses: Product licensing segment 44,865 43,696 130,901 129,496 Semiconductor and IP licensing segment 19,177 20,744 57,546 64,881 Unallocated operating expenses (1) 28,084 40,626 93,262 128,074 Total operating expenses 92,126 105,066 281,709 322,451 Operating income (loss): Product licensing segment 15,513 (916 ) 33,854 (12,653 ) Semiconductor and IP licensing segment (7,190 ) 24,984 (20,450 ) 65,361 Unallocated operating expenses (1) (28,084 ) (40,626 ) (93,262 ) (128,074 ) Total operating loss $ (19,761 ) $ (16,558 ) $ (79,858 ) $ (75,366 ) (1) Unallocated operating expenses consist primarily of general and administrative expenses, such as administration, human resources, finance, information technology, corporate development and procurement. These expenses are not allocated because these amounts are not considered in evaluating the operating performance of the Company’s business segments. A significant portion of the Company’s revenue is derived from licensees headquartered outside of the U.S., principally in Asia, and it is expected that this revenue will continue to account for a significant portion of total revenue in future periods. The table below lists the geographic revenue for the periods indicated (in thousands): Three Months Ended Nine Months Ended September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Japan $ 27,609 38 % $ 20,647 23 % $ 65,153 32 % $ 54,706 22 % Korea 19,158 27 13,607 16 51,046 25 34,597 14 U.S. 13,949 19 31,548 36 39,529 20 98,680 40 Europe and Middle East 9,359 13 3,594 4 25,492 13 11,064 5 China 1,980 3 3,714 4 17,615 9 10,367 4 Other 310 — 15,398 17 3,016 1 37,671 15 $ 72,365 100 % $ 88,508 100 % $ 201,851 100 % $ 247,085 100 % For the three months ended September 30, 2018 and 2017, there were three and three customers, respectively, that each accounted for 10% or more of total revenue. For the nine months ended September 30, 2018 and 2017, there were one and three customers, respectively, that each accounted for 10% or more of total revenue. As of September 30, 2018 and December 31, 2017, there were three and three customers that each accounted for 10% or more of total accounts receivable, respectively.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	NOTE 15 - SUBSEQUENT EVENTS On October 25, 2018, the Board declared a cash dividend of $0.20 per share of common stock, payable on December 19, 2018 for the stockholders of record at the close of business on November 28, 2018.

Summary Of Significant Accoun_2

Summary Of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2018
Accounting Policies [Abstract]
Basis of Accounting	The accompanying interim unaudited condensed consolidated financial statements as of September 30, 2018 and 2017, and for the three and nine months then ended, have been prepared by the Company in accordance with generally accepted accounting principles (“GAAP”) in the United States (“U.S.”) for interim financial information. The amounts as of December 31, 2017 have been derived from the Company’s annual audited financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted in accordance with such rules and regulations. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments necessary (consisting of normal recurring adjustments) to state fairly the financial position of the Company and its results of operations and cash flows as of and for the periods presented. These financial statements should be read in conjunction with the annual audited financial statements and notes thereto as of and for the year ended December 31, 2017, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017, filed on February 23, 2018 (the “Form 10-K”).
Reclassification	Reclassification Certain reclassifications have been made to prior period balances in order to conform to the current period’s presentation.
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements In January 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (ASU 2016-01), which addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. – Financial Instruments In August 2016, the FASB issued Accounting Standards Update (“ASU”) No. 2016-15, “ Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments In October 2016, the FASB issued ASU No. 2016-16, " Intra-Entity Transfers of Assets Other Than Inventory In May 2017, the FASB issued ASU No. 2017-09, “ Compensation-Stock Compensation (Topic 718) Scope of Modification Accounting. In May 2014, the FASB issued ASU No. 2014-09 (Topic 606) " Revenue from Contracts with Customers Revenue Recent Accounting Pronouncements In February 2016, the FASB issued ASU No. 2016-02, " Leases" (Topic 842) Commitments and Contingencies In September 2016, the FASB issued ASU No. 2016-13, “ Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments In June 2018, the FASB issued ASU No. 2018-07, “ Stock-based Compensation: Improvements to Nonemployee Share-based Payment Accounting,”
Revenue Recognition	Revenue Recognition The Company derives its revenue primarily from royalty and license fees for rights to use the Company’s intellectual property and technologies (“IP”). Revenue is recognized upon transfer of control of promised products, services or IP rights to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products, services or licensing of the IP rights. Certain licensees have entered into fixed fee or minimum guarantee arrangements, whereby licensees pay a fixed fee for the right to incorporate the Company's technology in the licensee's products over the license term. In arrangements with a minimum guarantee, the fixed fee component corresponds to a minimum number of units or dollars that the customer must produce or pay, with additional per-unit fees for any units or dollars exceeding the minimum. In most cases, the customer pays the fixed license fee in specified installments over the license term. For these agreements, the Company recognizes the full fixed fee as revenue at the beginning of the license term, when the licensee has the right to use the IP and begins to benefit from the license. If the contract term of a fixed fee or minimum guarantee arrangement is longer than one year, the Company also considers the scheduled payment arrangements to determine whether a significant financing component exists. In general, if the payment arrangements extend beyond the initial twelve months of the contract, the Company treats a portion of the payments as a significant financing component. When the payments are expected to be received within one year or less, the Company does not adjust the promised amount of consideration for the effects of a financing component. The discount rate used for each arrangement reflects the rate that would be used in a separate financing transaction between the Company and the licensee at contract inception, and takes into account the credit characteristics of the licensee and market interest rates as of the date of the agreement. As such, the amount of fixed fee revenue recognized at the beginning of the license term will be reduced by the calculated financing component. As payments are received from the licensee, the Company recognizes a portion of the financing component as interest income, reported as other income and expense in the Condensed Consolidated Statements of Operations. For certain licensees, royalty revenues are generated based on a licensee's production or shipment of licensed products incorporating the Company’s IP, technologies or software. Licensees with a per-unit arrangement pay a per-unit royalty for each product manufactured or sold, as set forth in its license agreement. Licensees generally report manufacturing or sales information in the quarter subsequent to when the production or shipment activity takes place. The Company estimates the royalties earned each quarter based on its forecast of manufacturing and sales activity incurred by its licensees in that quarter. Any differences between actual royalties owed by a licensee and the Company’s quarterly estimate are recognized in the following quarter, when the licensee’s royalty report is received. Estimating licensees’ quarterly royalties prior to receiving the royalty reports requires the Company to make significant assumptions and judgments that could have a material impact on the amount of revenue it reports on a quarterly basis. The Company actively monitors and enforces its IP, including seeking appropriate compensation from customers that have under-reported royalties owed under a license agreement and from third parties that utilize the Company’s intellectual property without a license. As a result of these activities, the Company may, from time to time, recognize revenue from payments resulting from periodic compliance audits of licensees for underreporting royalties incurred in prior periods, as part of a settlement of a patent infringement dispute, or legal judgments from a license dispute. These recoveries and settlements may cause revenue to be higher than expected during a particular reporting period and such recoveries may not occur in subsequent periods. The Company recognizes revenue from recoveries when a binding agreement has been executed and the Company concludes collection under that agreement is likely. In some instances, the Company may enter into license agreements that contain multiple performance obligations that include engineering services in addition to a technology or software license. For such arrangements where all components are capable of being distinct and accounted for as separate performance obligations, the Company allocates revenue to each performance obligation based on its relative standalone selling price. The Company generally determines standalone selling prices based on the prices ordinarily charged to customers, or in some cases by applying a reasonable cost-plus margin. The consideration for engineering services is recognized as the underlying performance obligations are satisfied. Generally, the Company satisfies performance obligations over time and therefore recognizes revenue over time by measuring the progress toward completion of the performance obligation at each reporting period. From time to time, the Company enters into arrangements with licensees in which the Company pays consideration to the licensee. Such payments can take the form of marketing development funds or various rebate incentives. The Company typically accounts for consideration paid to its licensees as a reduction to the transaction price and revenue, unless the payment to the licensee is in exchange for a distinct good or service that the licensee transfers to the Company. In cases where the consideration paid to the licensee is variable, the Company estimates the variable consideration based on the terms of the arrangement and expectations of future outcomes. The Company recognizes the reduction to revenue when it recognizes revenue for transfer of control of promised products, services or IP rights to the licensee. Revenue is recognized gross of withholding taxes that are remitted directly by the Company's licensees directly to a local tax authority. Contract Balances Unbilled Contracts Receivable Timing of revenue recognition may differ significantly from the timing of invoicing to customers. Accounts receivable, net, includes amounts billed and currently due from customers. Unbilled contracts receivable represents unbilled amounts expected to be received from customers in future periods, where the revenue recognized to date (or cumulative adjustments to retained earnings in the initial period of adopting Topic 606) exceeds the amount billed, and right to payment is subject to the underlying contractual terms. Unbilled contracts receivable amounts may not exceed their net realizable value and are classified as long-term assets if the payments are expected to be received more than one year from the reporting date. Deferred Revenue Deferred revenue includes payments made by licensees for which the corresponding performance obligations have not yet been fully satisfied by the Company and typically arises where performance obligations are satisfied over time. Practical Expedients The Company expenses sales commissions when incurred because the amortization period generally would have been one year or less. In addition, sales commissions have historically not been a significant expense and are not contemplated to be significant in the future. Sales commissions are recorded in selling, general and administrative expenses in the Condensed Consolidated Statement of Operations.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2018
Accounting Policies [Abstract]
Schedule of Impact of Adoption	The cumulative effect of the changes made to the Company's Condensed Consolidated Balance Sheet for the adoption of Topic 606 was as follows (in thousands): Balance at December 31, 2017 Adjustments due to Topic 606 Balance at January 1, 2018 Assets Unbilled contracts receivable $ 10,866 $ 188,760 $ 199,626 Other current assets 16,949 (2,000 ) 14,949 Long-term unbilled contracts receivable 2,930 103,983 106,913 Other assets 9,772 (2,446 ) 7,326 Liabilities Accrued liabilities 47,969 432 48,401 Deferred revenue 2,686 (783 ) 1,903 Long-term deferred tax liabilities 15,085 64,520 79,605 Equity Retained earnings 68,556 224,128 292,684 Adoption of the new revenue standard had the following impact on the Company's condensed consolidated financial statements as compared to the comparable data under the previous accounting standards (in thousands, except per share amounts): Three Months Ended September 30, 2018 Nine Months Ended September 30, 2018 STATEMENT OF OPERATIONS As Reported Amounts under Topic 605 Effect of Change Higher/(lower) As Reported Amounts under Topic 605 Effect of Change Higher/(lower) Royalty and license fees $ 72,365 $ 100,375 $ (28,010 ) $ 201,851 $ 293,251 $ (91,400 ) Cost of revenue 5,003 2,231 2,772 9,407 6,560 2,847 Operating income (loss) (19,761 ) 11,021 (30,782 ) (79,858 ) 14,390 (94,248 ) Other income and expense, net 1,737 160 1,577 7,120 1,245 5,875 Income (loss) before taxes (24,367 ) 4,839 (29,206 ) (91,599 ) (3,226 ) (88,373 ) Provision for (benefit from) income taxes (2,591 ) 1,956 (4,547 ) (8,550 ) 6,665 (15,215 ) Net income (loss) (21,776 ) 2,883 (24,659 ) (83,049 ) (9,891 ) (73,158 ) Basic net income (loss) per share $ (0.44 ) $ 0.06 $ (0.50 ) $ (1.69 ) $ (0.20 ) $ (1.49 ) As of September 30, 2018 BALANCE SHEET As Reported Amounts under Topic 605 Effect of Change Higher/(lower) Assets Unbilled contracts receivable $ 154,417 $ 4,653 $ 149,764 Other current assets 17,029 18,279 (1,250 ) Long-term unbilled contracts receivable 59,797 1,823 57,974 Other assets 5,479 7,545 (2,066 ) Liabilities Accrued liabilities 30,513 26,445 4,068 Deferred revenue 452 889 (437 ) Long-term deferred tax liabilities 58,112 8,358 49,754 Equity Retained earnings 180,127 29,090 151,037

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Sep. 30, 2018
Revenue From Contract With Customer [Abstract]
Schedule of Revenue Recognized in Period	The following table presents additional revenue and contract disclosures (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Revenue recognized in the period from: Amounts included in deferred revenue at the beginning of the period $ 3,852 $ 845 $ 1,602 $ 1,123 Performance obligations satisfied in previous periods (true ups and licensee reporting adjustments)* $ 3,375 $ 40 $ 3,001 $ 4,115
Schedule of Remaining Performance Obligations	The Company's remaining revenue under contracts with performance obligations was as follows (in thousands): As of September 30, 2018 December 31, 2017 Revenue from contracts with performance obligations expected to be satisfied in: One year or less $ 3,420 $ 2,440 More than one year but less than two years 335 149 More than two years — 240 Total $ 3,755 $ 2,829

Composition Of Certain Financ_2

Composition Of Certain Financial Statement Captions (Tables)	9 Months Ended
	Sep. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Other Current Assets	Other current assets consisted of the following (in thousands): September 30, 2018 December 31, 2017 Prepaid income taxes $ 8,190 $ 6,713 Prepaid expenses 6,796 6,655 Other 2,043 3,581 $ 17,029 $ 16,949
Property and Equipment, Net	Property and equipment, net, consisted of the following (in thousands): September 30, 2018 December 31, 2017 Equipment, furniture and other $ 28,378 $ 26,029 Building and improvements 18,258 18,222 Land 5,300 5,300 Leasehold improvements 6,443 6,469 58,379 56,020 Less: accumulated depreciation and amortization (26,610 ) (21,578 ) $ 31,769 $ 34,442
Accrued Liabilities	Accrued liabilities consisted of the following (in thousands): September 30, 2018 December 31, 2017 Employee compensation and benefits $ 16,691 $ 37,056 Other 13,822 10,913 $ 30,513 $ 47,969
Accumulated Other Comprehensive Loss	Accumulated other comprehensive loss consisted of the following (in thousands): September 30, 2018 December 31, 2017 Unrealized loss on available-for-sale securities, net of tax $ (382 ) $ (303 ) $ (382 ) $ (303 )
Other Income and Expense, Net	Other income and expense, net, consisted of the following (in thousands): Three Months Ended, Nine Months Ended, September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Interest income from significant financing components under Topic 606 $ 1,577 $ — $ 5,876 $ — Interest income from investments 233 269 697 731 Unrealized loss on marketable equity securities (566 ) — (566 ) — Other income (losses) 493 470 1,113 274 $ 1,737 $ 739 $ 7,120 $ 1,005

Financial Instruments (Tables)

Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2018
Investments Debt And Equity Securities [Abstract]
Summary of Marketable Securities	The Company has investments in debt securities which include corporate bonds and notes, treasury and agency notes and bills, commercial paper, certificates of deposit, and in equity securities consisting of money market funds and common equity securities of a publicly traded Japanese company. The Company classifies its debt securities as available-for-sale, which are accounted for at fair value with unrealized gains and losses recognized in accumulated other comprehensive gain or loss on the Condensed Consolidated Balance Sheets. Prior to January 1, 2018, the Company accounted for equity securities in the same manner as debt securities. Realized gains and losses on equity securities sold, if any, were recognized in other income and expense, net, on the Condensed Consolidated Statement of Operations. On January 1, 2018, the Company adopted ASU 2016-01 (Topic 321) which requires equity securities to be measured at fair value and starting January 1, 2018 unrealized gains and losses are recognized in other income and expense, net, on the Condensed Consolidated Statement of Operations. The following is a summary of marketable securities at September 30, 2018 and December 31, 2017 (in thousands): September 30, 2018 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Marketable securities Corporate bonds and notes $ 33,893 $ — $ (306 ) $ 33,587 Commercial paper 8,962 — (5 ) 8,957 Treasury and agency notes and bills 6,000 — (71 ) 5,929 Total debt securities 48,855 — (382 ) 48,473 Money market funds 67 — — 67 Marketable equity securities 5,662 — (566 ) 5,096 Total equity securities 5,729 — (566 ) 5,163 Total marketable securities $ 54,584 $ — $ (948 ) $ 53,636 Reported in: Cash and cash equivalents $ 67 Investments 53,569 Total marketable securities $ 53,636 December 31, 2017 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Marketable securities Corporate bonds and notes $ 45,803 $ — $ (230 ) $ 45,573 Commercial paper 2,392 — (2 ) 2,390 Treasury and agency notes and bills 6,000 — (71 ) 5,929 Certificates of deposit 8,540 — — 8,540 Total debt securities 62,735 — (303 ) 62,432 Money market funds - equity securities 40,413 — — 40,413 Total marketable securities $ 103,148 $ — $ (303 ) $ 102,845 Reported in: Cash and cash equivalents $ 40,413 Investments 62,432 Total marketable securities $ 102,845
Schedule of Gross Unrealized Losses on Investments	The following table summarizes the fair value and gross unrealized losses related to individual available-for-sale securities at September 30, 2018 and December 31, 2017, which have been in a continuous unrealized loss position, aggregated by investment category and length of time (in thousands): Less Than 12 Months 12 Months or More Total September 30, 2018 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate bonds and notes $ 19,868 $ (136 ) $ 13,719 $ (170 ) $ 33,587 $ (306 ) Commercial paper 8,957 (5 ) — — 8,957 (5 ) Treasury and agency notes and bills — — 5,929 (71 ) 5,929 (71 ) Total $ 28,825 $ (141 ) $ 19,648 $ (241 ) $ 48,473 $ (382 ) Less Than 12 Months 12 Months or More Total December 31, 2017 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate bonds and notes $ 30,811 $ (189 ) $ 14,762 $ (41 ) $ 45,573 $ (230 ) Commercial paper 2,390 (2 ) — — 2,390 (2 ) Treasury and agency notes and bills — — 5,929 (71 ) 5,929 (71 ) Total $ 33,201 $ (191 ) $ 20,691 $ (112 ) $ 53,892 $ (303 )
Estimated Fair Value of Marketable Debt Securities by Contractual Maturity	The estimated fair value of marketable debt securities by contractual maturity at September 30, 2018 is shown below (in thousands). Actual maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations without call or prepayment penalties. Estimated Fair Value Due in one year or less $ 33,565 Due in one to two years 14,908 Due in two to three years — Total $ 48,473

Fair Value (Tables)

Fair Value (Tables)	9 Months Ended
	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis	The following is a list of the Company’s assets required to be measured at fair value on a recurring basis and where they were classified within the hierarchy as of September 30, 2018 (in thousands): Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets Marketable securities Money market funds - equity securities (1) $ 67 $ 67 $ — $ — Marketable equity securities (2) 5,096 5,096 — — Commercial paper - debt securities (2) 8,957 — 8,957 — Corporate bonds and notes - debt securities (2) 33,587 — 33,587 — Treasury and agency notes and bills - debt securities (2) 5,929 — 5,929 — Total Assets $ 53,636 $ 5,163 $ 48,473 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at September 30, 2018: (1) Reported as cash and cash equivalents. (2) Reported as investments. The following is a list of the Company’s assets required to be measured at fair value on a recurring basis and where they were classified within the hierarchy as of December 31, 2017 (in thousands): Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets Marketable securities Money market funds - equity securities (1) $ 40,413 $ 40,413 $ — $ — Certificates of deposit - debt securities (2) 8,540 — 8,540 — Corporate bonds and notes - debt securities (2) 45,573 — 45,573 — Treasury and agency notes and bills - debt securities (2) 5,929 — 5,929 — Commercial paper - debt securities (2) 2,390 — 2,390 — Total Assets $ 102,845 $ 40,413 $ 62,432 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at December 31, 2017: (1) Reported as cash and cash equivalents. (2) Reported as investments.

Goodwill And Identified Intan_2

Goodwill And Identified Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Changes to Carrying Value of Goodwill	The changes to the carrying value of goodwill from January 1, 2018 through September 30, 2018 are reflected below (in thousands): December 31, 2017 $ 385,574 Goodwill acquired through a business acquisition (1) 210 September 30, 2018 $ 385,784 (2) (1) Related to the acquisition of an emerging technology company in May 2018. (2) Of this amount, approximately $378.1 million was allocated to the Product Licensing segment and approximately $7.7 million was allocated to the Semiconductor and IP Licensing segment.
Identified Intangible Assets	Identified intangible assets consisted of the following (in thousands): Average September 30, 2018 December 31, 2017 Life (Years) Gross Assets Accumulated Amortization Net Gross Assets Accumulated Amortization Net Acquired patents / core technology 3-15 $ 145,934 $ (125,149 ) $ 20,785 $ 142,584 $ (113,349 ) $ 29,235 Existing technology 5-10 206,879 (87,389 ) 119,490 204,394 (61,518 ) 142,876 Customer contracts and related relationships 3-9 291,769 (108,440 ) 183,329 291,769 (68,267 ) 223,502 Trademarks/trade name 4-10 40,083 (9,840 ) 30,243 40,083 (6,111 ) 33,972 Non-competition agreements 1 2,231 (2,231 ) — 2,231 (2,231 ) — Total amortizable intangible assets 686,896 (333,049 ) 353,847 681,061 (251,476 ) 429,585 In-process research and development — — — 2,204 — 2,204 Total intangible assets $ 686,896 $ (333,049 ) $ 353,847 $ 683,265 $ (251,476 ) $ 431,789
Estimated Future Amortization Expense	As of September 30, 2018, the estimated future amortization expense of total intangible assets was as follows (in thousands): 2018 (remaining 3 months) $ 26,854 2019 99,852 2020 88,137 2021 80,428 2022 31,989 Thereafter 26,587 $ 353,847

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2018
Debt Disclosure [Abstract]
Summarize of Future Minimum Principal Payments for Long-term Debt	As of September 30, 2018, future minimum principal payments for long-term debt are summarized as follows (in thousands): 2018 (remaining 3 months) $ — 2019 — 2020 — 2021 — 2022 — Thereafter 494,000 Total $ 494,000

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	9 Months Ended
	Sep. 30, 2018
Earnings Per Share [Abstract]
Computation of Basic and Diluted Net Loss Per Share	The following table sets forth the computation of basic and diluted shares (in thousands): Three Months Ended Nine Months Ended September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Denominator: Weighted average common shares outstanding 48,958 49,469 49,005 49,296 Less: shares of restricted stock subject to repurchase — — — (3 ) Total common shares-basic 48,958 49,469 49,005 49,293 Effect of dilutive securities: Options — — — — Restricted stock awards and units — — — — Total common shares-diluted 48,958 49,469 49,005 49,293

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Summary of Stock Option Activity	A summary of the stock option activity is presented below (in thousands, except per share amounts): Options Outstanding Number of Shares Subject to Options Weighted Average Exercise Price Per Share Balance at December 31, 2017 1,172 $ 24.06 Options granted — — Options exercised (427 ) $ 18.76 Options canceled / forfeited / expired (60 ) $ 35.16 Balance at September 30, 2018 685 $ 26.39
Summary of Restricted Stock Awards and Units	Information with respect to outstanding restricted stock awards and units as of September 30, 2018 is as follows (in thousands, except per share amounts): Restricted Stock and Restricted Stock Units Number of Shares Subject to Time- based Vesting Number of Shares Subject to Performance- based Vesting Total Number of Shares Weighted Average Grant Date Fair Value Per Share Balance at December 31, 2017 2,014 1,119 3,133 $ 33.35 Awards and units granted 1,067 45 1,112 $ 21.96 Awards and units vested / earned (641 ) (176 ) (817 ) $ 34.86 Awards and units canceled / forfeited (160 ) (230 ) (390 ) $ 29.61 Balance at September 30, 2018 2,280 758 3,038 $ 29.26

Stock-Based Compensation Expe_2

Stock-Based Compensation Expense (Tables)	9 Months Ended
	Sep. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Effect of Recording Stock-Based Compensation Expense	The effect of recording stock-based compensation expense for the three and nine months ended September 30, 2018 and 2017 is as follows (in thousands): Three Months Ended Nine Months Ended September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Research, development and other related costs $ 3,252 $ 3,290 $ 9,690 $ 9,424 Selling, general and administrative 4,201 5,086 12,390 14,537 Total stock-based compensation expense 7,453 8,376 22,080 23,961 Tax effect on stock-based compensation expense (1,177 ) (2,295 ) (3,592 ) (6,685 ) Net effect on net income (loss) $ 6,276 $ 6,081 $ 18,488 $ 17,276
Stock-Based Compensation Expense Categorized by Equity Components	Stock-based compensation expense categorized by various equity components for the three and nine months ended September 30, 2018 and 2017 is summarized in the table below (in thousands): Three Months Ended Nine Months Ended September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Employee stock options $ 79 $ 536 $ 362 $ 1,767 Restricted stock awards and units 7,060 7,091 19,870 20,378 Employee stock purchase plan 314 749 1,848 1,816 Total stock-based compensation expense $ 7,453 $ 8,376 $ 22,080 $ 23,961
Schedule of Assumptions Used To Value Options Granted	ESPP grants occur in February and August. The following assumptions were used to value the ESPP shares for these grants: August 2018 August 2017 Expected life (years) 2.0 2.0 Risk-free interest rate 2.7 % 1.3 % Dividend yield 3.9 % 2.5 % Expected volatility 41.7 % 30.8 %

Segment And Geographic Inform_2

Segment And Geographic Information (Tables)	9 Months Ended
	Sep. 30, 2018
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following table sets forth the Company’s segment revenue, operating expenses and operating income (loss) for the three and nine months ended September 30, 2018 and 2017 (in thousands): Three Months Ended Nine Months Ended September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Revenue: Product licensing segment $ 60,378 $ 42,780 $ 164,755 $ 116,843 Semiconductor and IP licensing segment 11,987 45,728 37,096 130,242 Total revenue 72,365 88,508 201,851 247,085 Operating expenses: Product licensing segment 44,865 43,696 130,901 129,496 Semiconductor and IP licensing segment 19,177 20,744 57,546 64,881 Unallocated operating expenses (1) 28,084 40,626 93,262 128,074 Total operating expenses 92,126 105,066 281,709 322,451 Operating income (loss): Product licensing segment 15,513 (916 ) 33,854 (12,653 ) Semiconductor and IP licensing segment (7,190 ) 24,984 (20,450 ) 65,361 Unallocated operating expenses (1) (28,084 ) (40,626 ) (93,262 ) (128,074 ) Total operating loss $ (19,761 ) $ (16,558 ) $ (79,858 ) $ (75,366 ) (1) Unallocated operating expenses consist primarily of general and administrative expenses, such as administration, human resources, finance, information technology, corporate development and procurement. These expenses are not allocated because these amounts are not considered in evaluating the operating performance of the Company’s business segments.
Schedule of Geographic Revenue Information	The table below lists the geographic revenue for the periods indicated (in thousands): Three Months Ended Nine Months Ended September 30, 2018 September 30, 2017 September 30, 2018 September 30, 2017 Japan $ 27,609 38 % $ 20,647 23 % $ 65,153 32 % $ 54,706 22 % Korea 19,158 27 13,607 16 51,046 25 34,597 14 U.S. 13,949 19 31,548 36 39,529 20 98,680 40 Europe and Middle East 9,359 13 3,594 4 25,492 13 11,064 5 China 1,980 3 3,714 4 17,615 9 10,367 4 Other 310 — 15,398 17 3,016 1 37,671 15 $ 72,365 100 % $ 88,508 100 % $ 201,851 100 % $ 247,085 100 %

The Company And Basis Of Pres_2

The Company And Basis Of Presentation - Narrative (Details) - Minimum	9 Months Ended
	Sep. 30, 2018customersemiconductor_chip
Organization Consolidation And Presentation [Line Items]
Percentage of smartphones embedded with Company's imaging technology	25.00%
Number of customers with licenses | customer	100
Number of semiconductor chips | semiconductor_chip	100,000,000,000

Summary Of Significant Accoun_4

Summary Of Significant Accounting Policies - Narrative (Details) $ in Millions	Dec. 31, 2017USD ($)
Accounting Standards Update 2014-09 | Retained Earnings
New Accounting Pronouncement, Early Adoption [Line Items]
Cumulative impact of adjustment to retained earnings	$ 224

Summary Of Significant Accoun_5

Summary Of Significant Accounting Policies - Schedule of Cumulative Impact of Adoption (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Assets
Unbilled contracts receivable	$ 154,417	$ 199,626	$ 10,866
Other current assets	17,029	14,949	16,949
Long-term unbilled contracts receivable	59,797	106,913	2,930
Other assets	5,479	7,326	9,772
Liabilities
Accrued liabilities	30,513	48,401	47,969
Deferred revenue	452	1,903
Long-term deferred tax liabilities	58,112	79,605	15,085
Equity
Retained earnings	180,127	292,684	68,556
Calculated under Revenue Guidance in Effect before Topic 606 | Accounting Standards Update 2014-09
Assets
Unbilled contracts receivable			10,866
Other current assets	18,279		16,949
Long-term unbilled contracts receivable	1,823		2,930
Other assets	7,545		9,772
Liabilities
Accrued liabilities	26,445		47,969
Deferred revenue	889		2,686
Long-term deferred tax liabilities	8,358		15,085
Equity
Retained earnings	29,090		$ 68,556
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Assets
Unbilled contracts receivable		188,760
Other current assets	(1,250)	(2,000)
Long-term unbilled contracts receivable	57,974	103,983
Other assets	(2,066)	(2,446)
Liabilities
Accrued liabilities	4,068	432
Deferred revenue	(437)	(783)
Long-term deferred tax liabilities	49,754	64,520
Equity
Retained earnings	$ 151,037	$ 224,128

Summary Of Significant Accoun_6

Summary Of Significant Accounting Policies - Schedule of Impact of Adoption on Condensed Consolidated Financial Statements (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Jan. 01, 2018	Dec. 31, 2017
STATEMENT OF OPERATIONS
Royalty and license fees	$ 72,365		$ 201,851
Cost of revenue	5,003	$ 1,667	9,407	$ 4,370
Operating income (loss)	(19,761)	(9,926)	(79,858)	(55,495)
Other income and expense, net	1,737	739	7,120	1,005
Income (loss) before taxes	(24,367)	(16,558)	(91,599)	(75,366)
Provision for (benefit from) income taxes	(2,591)	$ (4,442)	(8,550)	$ (13,164)
Net income (loss)	$ (21,776)		$ (83,049)
Basic/Diluted net loss per share:
Basic	$ (0.44)	$ (0.24)	$ (1.69)	$ (1.26)
Assets
Unbilled contracts receivable	$ 154,417		$ 154,417
Other current assets	17,029		17,029		$ 14,949	$ 16,949
Long-term unbilled contracts receivable	59,797		59,797		106,913	2,930
Other assets	5,479		5,479		7,326	9,772
Liabilities
Accrued liabilities	30,513		30,513		48,401	47,969
Deferred revenue	452		452		1,903
Long-term deferred tax liabilities	58,112		58,112		79,605	15,085
Equity
Retained earnings	180,127		180,127		292,684	68,556
Calculated under Revenue Guidance in Effect before Topic 606 | Accounting Standards Update 2014-09
STATEMENT OF OPERATIONS
Royalty and license fees	100,375		293,251
Cost of revenue	2,231		6,560
Operating income (loss)	11,021		14,390
Other income and expense, net	160		1,245
Income (loss) before taxes	4,839		(3,226)
Provision for (benefit from) income taxes	1,956		6,665
Net income (loss)	$ 2,883		$ (9,891)
Basic/Diluted net loss per share:
Basic	$ 0.06		$ (0.20)
Assets
Unbilled contracts receivable	$ 4,653		$ 4,653
Other current assets	18,279		18,279			16,949
Long-term unbilled contracts receivable	1,823		1,823			2,930
Other assets	7,545		7,545			9,772
Liabilities
Accrued liabilities	26,445		26,445			47,969
Deferred revenue	889		889			2,686
Long-term deferred tax liabilities	8,358		8,358			15,085
Equity
Retained earnings	29,090		29,090			$ 68,556
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
STATEMENT OF OPERATIONS
Royalty and license fees	(28,010)		(91,400)
Cost of revenue	2,772		2,847
Operating income (loss)	(30,782)		(94,248)
Other income and expense, net	1,577		5,875
Income (loss) before taxes	(29,206)		(88,373)
Provision for (benefit from) income taxes	(4,547)		(15,215)
Net income (loss)	$ (24,659)		$ (73,158)
Basic/Diluted net loss per share:
Basic	$ (0.50)		$ (1.49)
Assets
Unbilled contracts receivable	$ 149,764		$ 149,764
Other current assets	(1,250)		(1,250)		(2,000)
Long-term unbilled contracts receivable	57,974		57,974		103,983
Other assets	(2,066)		(2,066)		(2,446)
Liabilities
Accrued liabilities	4,068		4,068		432
Deferred revenue	(437)		(437)		(783)
Long-term deferred tax liabilities	49,754		49,754		64,520
Equity
Retained earnings	$ 151,037		$ 151,037		$ 224,128

Revenue - Revenue Recognized in

Revenue - Revenue Recognized in Period (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue From Contract With Customer [Abstract]
Amounts included in deferred revenue at the beginning of the period	$ 3,852	$ 845	$ 1,602	$ 1,123
Performance obligations satisfied in previous periods (true ups and licensee reporting adjustments)	$ 3,375	$ 40	$ 3,001	$ 4,115

Revenue - Performance Obligatio

Revenue - Performance Obligations (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 3,755	$ 2,829
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2018-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations		$ 2,440
Performance obligations expected to be satisfied, expected timing		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2018-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 3,420
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 335	$ 149
Performance obligations expected to be satisfied, expected timing	1 year	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations		$ 240
Performance obligations expected to be satisfied, expected timing

Revenue - Performance Obligat_2

Revenue - Performance Obligations (Details 1) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 3,755	$ 2,829

Composition Of Certain Financ_3

Composition Of Certain Financial Statement Captions - Other Current Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Prepaid income taxes	$ 8,190		$ 6,713
Prepaid expenses	6,796		6,655
Other	2,043		3,581
Other current assets, total	$ 17,029	$ 14,949	$ 16,949

Composition Of Certain Financ_4

Composition Of Certain Financial Statement Captions - Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 58,379		$ 58,379		$ 56,020
Less: accumulated depreciation and amortization	(26,610)		(26,610)		(21,578)
Property and equipment, net	31,769		31,769		34,442
Depreciation and amortization of property and equipment	1,600	$ 1,700	5,100	$ 5,400
Equipment, furniture and other
Property, Plant and Equipment [Line Items]
Property and equipment, gross	28,378		28,378		26,029
Building and improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	18,258		18,258		18,222
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,300		5,300		5,300
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 6,443		$ 6,443		$ 6,469

Composition Of Certain Financ_5

Composition Of Certain Financial Statement Captions - Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Employee compensation and benefits	$ 16,691		$ 37,056
Other	13,822		10,913
Accrued liabilities, total	$ 30,513	$ 48,401	$ 47,969

Composition Of Certain Financ_6

Composition Of Certain Financial Statement Captions - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Unrealized loss on available-for-sale securities, net of tax	$ (382)	$ (303)
Accumulated other comprehensive income (loss)	$ (382)	$ (303)

Composition Of Certain Financ_7

Composition Of Certain Financial Statement Captions Composition Of Certain Financial Statement Captions - Other Income and Expense, Net (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Interest income from significant financing components under Topic 606	$ 72,365,000	$ 88,508,000	$ 201,851,000	$ 247,085,000
Interest income from investments	233,000	269,000	697,000	731,000
Unrealized loss on marketable equity securities	(566,000)	0	(566,000)	0
Other income (losses)	493,000	470,000	1,113,000	274,000
Other income and expense, net	1,737,000	739,000	7,120,000	1,005,000
Financing
Disaggregation of Revenue [Line Items]
Interest income from significant financing components under Topic 606	$ 1,577,000	$ 0	$ 5,876,000	$ 0

Financial Instruments - Summary

Financial Instruments - Summary of Marketable Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Marketable Securities [Line Items]
Debt securities, Cost	$ 48,855	$ 62,735
Debt securities, Gross Unrealized Gains	0	0
Debt securities, Gross Unrealized Losses	(382)	(303)
Debt securities, Estimated Fair Values	48,473	62,432
Equity securities, Cost	5,729
Equity securities, Gross Unrealized Gains	0
Equity securities, Gross Unrealized Losses	(566)
Equity securities, Estimated Fair Values	5,163
Marketable securities, Cost	54,584	103,148
Marketable securities, Gross Unrealized Gains	0	0
Marketable securities, Gross Unrealized Losses	(948)	(303)
Marketable securities, Estimated Fair Values	53,636	102,845
Marketable equity securities
Marketable Securities [Line Items]
Equity securities, Cost	5,662
Equity securities, Gross Unrealized Gains	0
Equity securities, Gross Unrealized Losses	(566)
Equity securities, Estimated Fair Values	5,096
Corporate bonds and notes
Marketable Securities [Line Items]
Debt securities, Cost	33,893	45,803
Debt securities, Gross Unrealized Gains	0	0
Debt securities, Gross Unrealized Losses	(306)	(230)
Debt securities, Estimated Fair Values	33,587	45,573
Commercial paper
Marketable Securities [Line Items]
Debt securities, Cost	8,962	2,392
Debt securities, Gross Unrealized Gains	0	0
Debt securities, Gross Unrealized Losses	(5)	(2)
Debt securities, Estimated Fair Values	8,957	2,390
Treasury and agency notes and bills
Marketable Securities [Line Items]
Debt securities, Cost	6,000	6,000
Debt securities, Gross Unrealized Gains	0	0
Debt securities, Gross Unrealized Losses	(71)	(71)
Debt securities, Estimated Fair Values	5,929	5,929
Certificates of deposit
Marketable Securities [Line Items]
Debt securities, Cost		8,540
Debt securities, Gross Unrealized Gains		0
Debt securities, Gross Unrealized Losses		0
Debt securities, Estimated Fair Values		8,540
Money market funds
Marketable Securities [Line Items]
Equity securities, Cost	67	40,413
Equity securities, Gross Unrealized Gains	0	0
Equity securities, Gross Unrealized Losses	0	0
Equity securities, Estimated Fair Values	67	40,413
Cash and cash equivalents
Marketable Securities [Line Items]
Marketable securities, Estimated Fair Values	67	40,413
Investments
Marketable Securities [Line Items]
Marketable securities, Estimated Fair Values	$ 53,569	$ 62,432

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - USD ($) shares in Millions	Sep. 19, 2018	Sep. 30, 2018	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Schedule of Investments [Line Items]
Cash, cash equivalents and investments		$ 105,400,000			$ 105,400,000		$ 200,700,000
Gross realized gains and losses on sales of marketable debt securities		0	$ 0		0	$ 0
Unrealized loss net of tax on marketable debt securities		400,000			400,000		300,000
Impairment charges related to marketable debt securities		0	0	$ 0	0
Equity securities, realized gains or losses on sales		0	0		0	0
Marketable equity securities, unrealized losses		(566,000)	$ 0		(566,000)	$ 0
Onkyo Corporation
Schedule of Investments [Line Items]
Number of common shares purchased	7
Ownership interest, percentage	6.30%
Operating Accounts
Schedule of Investments [Line Items]
Cash, cash equivalents and investments		$ 51,800,000			$ 51,800,000		$ 97,800,000

Financial Instruments - Fair Va

Financial Instruments - Fair Value and Gross Unrealized Losses Related to Individual Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 28,825	$ 33,201
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(141)	(191)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	19,648	20,691
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(241)	(112)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	48,473	53,892
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(382)	(303)
Corporate bonds and notes
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	19,868	30,811
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(136)	(189)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	13,719	14,762
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(170)	(41)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	33,587	45,573
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(306)	(230)
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	8,957	2,390
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(5)	(2)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	8,957	2,390
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(5)	(2)
Treasury and agency notes and bills
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	5,929	5,929
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(71)	(71)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	5,929	5,929
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	$ (71)	$ (71)

Financial Instruments - Estimat

Financial Instruments - Estimated Fair Value of Marketable Debt Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Investments Debt And Equity Securities [Abstract]
Due in one year or less	$ 33,565
Due in one to two years	14,908
Total	$ 48,473	$ 62,432

Fair Value - Assets Required to

Fair Value - Assets Required to be Measured at Fair Value on Recurring Basis (Detail) - Recurring - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 53,636	$ 102,845
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	5,163	40,413
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	48,473	62,432
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Money market funds - equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	67	40,413
Money market funds - equity securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	67	40,413
Money market funds - equity securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Money market funds - equity securities | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Marketable equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	5,096
Marketable equity securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	5,096
Marketable equity securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0
Marketable equity securities | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0
Certificates of deposit - debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		8,540
Certificates of deposit - debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		0
Certificates of deposit - debt securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		8,540
Certificates of deposit - debt securities | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		0
Commercial paper - debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	8,957	2,390
Commercial paper - debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Commercial paper - debt securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	8,957	2,390
Commercial paper - debt securities | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Corporate bonds and notes - debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	33,587	45,573
Corporate bonds and notes - debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Corporate bonds and notes - debt securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	33,587	45,573
Corporate bonds and notes - debt securities | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Treasury and agency notes and bills - debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	5,929	5,929
Treasury and agency notes and bills - debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Treasury and agency notes and bills - debt securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	5,929	5,929
Treasury and agency notes and bills - debt securities | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 0	$ 0

Goodwill And Identified Intan_3

Goodwill And Identified Intangible Assets - Schedule of Goodwill (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2018USD ($)
Goodwill [Roll Forward]
December 31, 2017	$ 385,574
Goodwill acquired through a business acquisition	210
September 30, 2018	385,784
Product Licensing Segment
Goodwill [Roll Forward]
September 30, 2018	378,100
Semiconductor and IP Licensing Segment
Goodwill [Roll Forward]
September 30, 2018	$ 7,700

Goodwill And Identified Intan_4

Goodwill And Identified Intangible Assets - Identified Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 686,896		$ 686,896		$ 681,061
Accumulated Amortization	(333,049)		(333,049)		(251,476)
Net	353,847		353,847		429,585
Intangible assets, gross	686,896		686,896		683,265
Intangible assets, net	353,847		353,847		431,789
Amortization expense	27,208	$ 27,769	81,573	$ 84,475
Acquired patents / core technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	145,934		145,934		142,584
Accumulated Amortization	(125,149)		(125,149)		(113,349)
Net	20,785		$ 20,785		29,235
Acquired patents / core technology | Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			3 years
Acquired patents / core technology | Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			15 years
Existing technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	206,879		$ 206,879		204,394
Accumulated Amortization	(87,389)		(87,389)		(61,518)
Net	119,490		$ 119,490		142,876
Existing technology | Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			5 years
Existing technology | Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			10 years
Customer contracts and related relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	291,769		$ 291,769		291,769
Accumulated Amortization	(108,440)		(108,440)		(68,267)
Net	183,329		$ 183,329		223,502
Customer contracts and related relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			3 years
Customer contracts and related relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			9 years
Trademarks/trade name
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	40,083		$ 40,083		40,083
Accumulated Amortization	(9,840)		(9,840)		(6,111)
Net	30,243		$ 30,243		33,972
Trademarks/trade name | Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			4 years
Trademarks/trade name | Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			10 years
Non-competition agreements
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			1 year
Finite-lived intangible assets, gross	2,231		$ 2,231		2,231
Accumulated Amortization	(2,231)		(2,231)		(2,231)
Net	0		0		0
In-process research and development (IPR&D)
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 0		$ 0		$ 2,204

Goodwill And Identified Intan_5

Goodwill And Identified Intangible Assets - Estimated Future Amortization Expense of Intangible Assets, Excluding the In-Process Research and Development (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
2018 (remaining 3 months)	$ 26,854
2,019	99,852
2,020	88,137
2,021	80,428
2,022	31,989
Thereafter	26,587
Net	$ 353,847	$ 429,585

Debt Narrative (Details)

Debt Narrative (Details) - USD ($)	Jan. 23, 2018	Dec. 01, 2016	Jan. 31, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Line of Credit Facility [Line Items]
Borrowings				$ 494,000,000		$ 494,000,000
Voluntary prepayment against the term loan	$ 100,000,000		$ 100,000,000		$ 1,500,000	100,000,000	$ 4,500,000
Interest expense				6,343,000	7,371,000	18,861,000	20,876,000
Term B Loan Facility
Line of Credit Facility [Line Items]
Borrowing capacity	$ 494,000,000	$ 600,000,000
Debt instrument, maturity date		Nov. 30, 2023
Borrowings		$ 600,000,000		$ 494,000,000		$ 494,000,000
Debt instrument, prepayment premium	1.00%
Interest rate				5.10%		5.10%
Unamortized debt issuance costs				$ 12,400,000		$ 12,400,000
Interest expense				6,300,000	7,400,000	18,900,000	20,900,000
Amortization of debt issuance costs				$ 600,000	$ 600,000	$ 1,900,000	$ 1,800,000
Term B Loan Facility | Eurodollar
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	2.50%
Term B Loan Facility | Base Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	1.50%
Term B Loan Facility | Royal Bank of Canada
Line of Credit Facility [Line Items]
Borrowing capacity		$ 600,000,000
Loan facility, term		7 years

Summarize of Future Minimum Pri

Summarize of Future Minimum Principal Payments for Long-term Debt (Details) $ in Thousands	Sep. 30, 2018USD ($)
Debt Disclosure [Abstract]
2018 (remaining 3 months)	$ 0
2,019	0
2,020	0
2,021	0
2,022	0
Thereafter	494,000
Total	$ 494,000

Net Loss Per Share - Schedule o

Net Loss Per Share - Schedule of Basic and Diluted Net Loss Per Share (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Denominator:
Weighted average common shares outstanding (in shares)	48,958	49,469	49,005	49,296
Less: shares of restricted stock subject to repurchase (in shares)	0	0	0	(3)
Total common shares-basic (in shares)	48,958	49,469	49,005	49,293
Effect of dilutive securities:
Options (in shares)	0	0	0	0
Restricted stock awards and units (in shares)	0	0	0	0
Total common shares-diluted (in shares)	48,958	49,469	49,005	49,293

Net Loss Per Share - Additional

Net Loss Per Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Shares of common stock excluded from the computation of net loss per share	2.8	2.7	2.8	1.8

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	9 Months Ended	125 Months Ended	134 Months Ended
	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2018
Debt and Equity Securities, FV-NI [Line Items]
Treasury stock, total repurchase during period (in shares)		11,142	12,974
Treasury stock, average price of share repurchased (in dollars per share)		$ 27.57	$ 26.54
Treasury stock, total cost of repurchased stock		$ 307.2	$ 344.4
Stock repurchase program, remaining amount available for repurchase	$ 105.6		$ 105.6
Employee stock purchase plan
Debt and Equity Securities, FV-NI [Line Items]
Shares reserved for grant (in shares)	1,137		1,137
Performance Shares | Minimum
Debt and Equity Securities, FV-NI [Line Items]
Performance awards, percentage of grant available to vest	0.00%
Performance Shares | Maximum
Debt and Equity Securities, FV-NI [Line Items]
Performance awards, percentage of grant available to vest	100.00%
2003 Plan | Employee stock options
Debt and Equity Securities, FV-NI [Line Items]
Shares reserved for grant (in shares)	3,500		3,500

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Stock Option Activity (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Number of Shares Subject to Options
Number of Shares, Beginning balance (shares)			1,172,000
Number of Shares, Options granted (shares)	0	0	0	0
Number of Shares, Options exercised (shares)			(427,000)
Number of Shares, Options cancelled / forfeited / expired (shares)			(60,000)
Number of Shares, Ending balance (shares)	685,000		685,000
Weighted Average Exercise Price Per Share
Weighted Average Exercise Price Per Share, Beginning balance (USD per share)			$ 24.06
Weighted Average Exercise Price Per Share, Options granted (USD per share)			0
Weighted Average Exercise Price Per Share, Options exercised (USD per share)			18.76
Weighted Average Exercise Price Per Share, Options cancelled / forfeited / expired (USD per share)			35.16
Weighted Average Exercise Price Per Share, Ending balance (USD per share)	$ 26.39		$ 26.39

Stockholders' Equity - Summar_2

Stockholders' Equity - Summary of Restricted Stock Awards and Units (Detail) - Restricted Stock shares in Thousands	9 Months Ended
	Sep. 30, 2018$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted stock awards and units, beginning balance (shares)	3,133
Restricted stock awards and units, granted (shares)	1,112
Restricted stock awards and units, vested / earned (shares)	(817)
Restricted stock awards and units, cancelled / forfeited (shares)	(390)
Restricted stock awards and units, ending balance (shares)	3,038
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant date fair value per share of restricted stock and units, beginning balance (USD per share) | $ / shares	$ 33.35
Weighted average grant date fair value per share of restricted stock and units, granted (USD per share) | $ / shares	21.96
Weighted average grant date fair value per share of restricted stock and units, vested / earned (USD per share) | $ / shares	34.86
Weighted average grant date fair value of restricted stock and units, cancelled / forfeited (USD per share) | $ / shares	29.61
Weighted average grant date fair value per share of restricted stock and units, ending balance (USD per share) | $ / shares	$ 29.26
Number Of Shares Subject To Time-Based Vesting
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted stock awards and units, beginning balance (shares)	2,014
Restricted stock awards and units, granted (shares)	1,067
Restricted stock awards and units, vested / earned (shares)	(641)
Restricted stock awards and units, cancelled / forfeited (shares)	(160)
Restricted stock awards and units, ending balance (shares)	2,280
Number Of Shares Subject To Performance-Based Vesting
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted stock awards and units, beginning balance (shares)	1,119
Restricted stock awards and units, granted (shares)	45
Restricted stock awards and units, vested / earned (shares)	(176)
Restricted stock awards and units, cancelled / forfeited (shares)	(230)
Restricted stock awards and units, ending balance (shares)	758

Stock-Based Compensation Expe_3

Stock-Based Compensation Expense - Effect of Recording Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 7,453	$ 8,376	$ 22,080	$ 23,961
Tax effect on stock-based compensation expense	(1,177)	(2,295)	(3,592)	(6,685)
Net effect on net income (loss)	6,276	6,081	18,488	17,276
Research, development and other related costs
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	3,252	3,290	9,690	9,424
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 4,201	$ 5,086	$ 12,390	$ 14,537

Stock-Based Compensation Expe_4

Stock-Based Compensation Expense - Categorized by Equity Components (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 7,453	$ 8,376	$ 22,080	$ 23,961
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	314	749	1,848	1,816
Employee stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	79	536	362	1,767
Restricted stock awards and units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 7,060	$ 7,091	$ 19,870	$ 20,378

Stock-Based Compensation Expe_5

Stock-Based Compensation Expense - Schedule of Assumptions Used to Value Options Granted (Detail) - shares	1 Months Ended		3 Months Ended		9 Months Ended
	Aug. 31, 2018	Aug. 31, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Options granted (shares)			0	0	0	0
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected life (in years)	2 years	2 years
Risk-free interest rate	2.70%	1.30%
Dividend yield	3.90%	2.50%
Expected volatility	41.70%	30.80%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Income Tax Contingency [Line Items]
Provision for (benefit from) income taxes	$ (2,591)	$ (4,442)	$ (8,550)	$ (13,164)
Loss before taxes	(24,367)	(16,558)	$ (91,599)	$ (75,366)
Effective tax rate (percent)			9.30%	17.50%
Unrecognized tax benefits	34,400	31,100	$ 34,400	$ 31,100
Unrecognized tax benefits that would impact the effective income tax rate	22,200	$ 24,400	22,200	$ 24,400
Interest and penalties related to unrecognized tax benefits	$ 800		$ 800		$ 600
Provisional tax expense					5,600
Remeasurement of U.S. deferred taxes					13,500
Federal Tax Credits and Remeasurement
Income Tax Contingency [Line Items]
Remeasurement of U.S. deferred taxes					$ 7,900

Commitments And Contingencies -

Commitments And Contingencies - Additional Information (Detail) - USD ($) $ in Millions	May 18, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Loss Contingencies [Line Items]
Rent under operating lease agreement		$ 1.8	$ 1.6	$ 5.4	$ 4.7
Minimum
Loss Contingencies [Line Items]
Damages sought for alleged breach of contract	$ 15

Segment and Geographic Inform_3

Segment and Geographic Information - Additional Information (Details) - segment	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Number of reportable segments			2
Customer One | Total Revenue | Customer Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage (or more)	10.00%	10.00%	10.00%	10.00%
Customer One | Total Accounts Receivable | Customer Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage (or more)			10.00%		10.00%
Customer Two | Total Revenue | Customer Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage (or more)		10.00%		10.00%
Customer Two | Total Accounts Receivable | Customer Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage (or more)					10.00%
Customer Three | Total Revenue | Customer Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage (or more)		10.00%		10.00%
Customer Three | Total Accounts Receivable | Customer Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage (or more)					10.00%

Segment And Geographic Inform_4

Segment And Geographic Information Schedule of Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Total revenue	$ 72,365	$ 88,508	$ 201,851	$ 247,085
Total operating expenses	92,126	105,066	281,709	322,451
Operating income (loss)	(19,761)	(9,926)	(79,858)	(55,495)
Loss before taxes	(24,367)	(16,558)	(91,599)	(75,366)
Operating Segments | Product Licensing Segment
Segment Reporting Information [Line Items]
Total revenue	60,378	42,780	164,755	116,843
Total operating expenses	44,865	43,696	130,901	129,496
Operating income (loss)	15,513		33,854
Loss before taxes		(916)		(12,653)
Operating Segments | Semiconductor and IP Licensing Segment
Segment Reporting Information [Line Items]
Total revenue	11,987	45,728	37,096	130,242
Total operating expenses	19,177	20,744	57,546	64,881
Operating income (loss)	(7,190)		(20,450)
Loss before taxes		24,984		65,361
Segment Reconciling Items
Segment Reporting Information [Line Items]
Total operating expenses	28,084	40,626	93,262	128,074
Operating income (loss)	$ (28,084)		$ (93,262)
Loss before taxes		$ (40,626)		$ (128,074)

Segment And Geographic Inform_5

Segment And Geographic Information - Schedule of Geographic Revenue Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 72,365	$ 88,508	$ 201,851	$ 247,085
Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	100.00%	100.00%	100.00%	100.00%
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 27,609	$ 20,647	$ 65,153	$ 54,706
Japan | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	38.00%	23.00%	32.00%	22.00%
Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 19,158	$ 13,607	$ 51,046	$ 34,597
Korea | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	27.00%	16.00%	25.00%	14.00%
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 13,949	$ 31,548	$ 39,529	$ 98,680
U.S. | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	19.00%	36.00%	20.00%	40.00%
Europe and Middle East
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 9,359	$ 3,594	$ 25,492	$ 11,064
Europe and Middle East | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	13.00%	4.00%	13.00%	5.00%
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 1,980	$ 3,714	$ 17,615	$ 10,367
China | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	3.00%	4.00%	9.00%	4.00%
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 310	$ 15,398	$ 3,016	$ 37,671
Other | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)		17.00%	1.00%	15.00%

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - $ / shares	Oct. 25, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Subsequent Event [Line Items]
Cash dividends declared per share (in dollars per share)		$ 0.20	$ 0.20	$ 0.60	$ 0.60
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared per share (in dollars per share)	$ 0.20
Dividends declaration date	Oct. 25, 2018
Dividends payable date	Dec. 19, 2018
Dividends record date	Nov. 28, 2018