Adeia (ADEA) 10-Q 8 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 30, 2019
Document And Entity Information [Abstract]
Entity Registrant Name	XPERI CORPORATION
Trading Symbol	XPER
Entity Central Index Key	0001690666
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	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		49,284,131

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net loss	$ (25,430)	$ (33,017)
Adjustments to reconcile net loss to net cash from operating activities:
Depreciation of property and equipment	1,668	1,775
Amortization of intangible assets	25,459	27,166
Stock-based compensation expense	7,623	7,408
Deferred income tax	(14,689)	(6,743)
Amortization of debt issuance costs and other	864	1,012
Changes in operating assets and liabilities:
Accounts receivable	(11,545)	(7,059)
Unbilled contracts receivable, net	47,262	31,123
Other assets	697	(770)
Operating lease right-of-use assets	373	0
Accounts payable	(991)	(609)
Accrued legal fees	(888)	(787)
Accrued and other liabilities	(15,887)	(17,543)
Operating lease liabilities	(393)	0
Deferred revenue	(302)	2,694
Net cash from operating activities	13,821	4,650
Cash flows from investing activities:
Purchases of property and equipment	(858)	(768)
Proceeds from sales of investments	0	8,540
Proceeds from maturities of investments	9,490	7,800
Net cash from investing activities	8,632	15,572
Cash flows from financing activities:
Dividend paid	(9,822)	(9,886)
Repayment of debt	(50,000)	(100,000)
Proceeds from exercise of stock options	253	829
Proceeds from employee stock purchase program	3,111	3,402
Repurchase of common stock	(3,131)	(17,861)
Net cash from financing activities	(59,589)	(123,516)
Net decrease in cash and cash equivalents	(37,136)	(103,294)
Cash and cash equivalents at beginning of period	113,625	138,260
Cash, cash equivalents and restricted cash at end of period	76,489	34,966
Supplemental disclosure of cash flow information:
Interest paid	6,044	5,650
Income taxes paid, net of refunds	$ 5,599	$ 3,963

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 76,489	$ 113,625
Short-term investments	31,000	40,739
Accounts receivable, net	42,043	30,294
Unbilled contracts receivable	168,442	195,436
Other current assets	17,233	17,434
Total current assets	335,207	397,528
Long-term unbilled contracts receivable	63,153	86,280
Property and equipment, net	30,227	31,037
Operating lease right-of-use assets	17,221
Intangible assets, net	302,261	327,720
Goodwill	385,784	385,784
Other assets	5,008	6,758
Total assets	1,138,861	1,235,107
Current liabilities:
Accounts payable	1,773	2,764
Accrued legal fees	2,032	2,920
Accrued liabilities	32,975	45,336
Deferred revenue	2,828	3,130
Total current liabilities	39,608	54,150
Long-term deferred tax liabilities	49,051	64,994
Long-term debt, net	432,834	482,193
Noncurrent operating lease liabilities	13,580
Other long-term liabilities	15,718	15,623
Total liabilities	550,791	616,960
Commitments and contingencies (Note 14)
Xperi 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; 63,151 and 62,212 shares issued, respectively, and 49,209 and 48,408 shares outstanding, respectively	63	62
Additional paid-in capital	741,703	730,695
Treasury stock at cost: 13,942 and 13,804 shares of common stock at each period end, respectively	(367,326)	(364,195)
Accumulated other comprehensive loss	(150)	(328)
Retained earnings	215,444	253,208
Total Xperi stockholders’ equity	589,734	619,442
Noncontrolling interest	(1,664)	(1,295)
Total equity	588,070	618,147
Total liabilities and equity	$ 1,138,861	$ 1,235,107

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2019	Dec. 31, 2018
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)	63,151,000	62,212,000
Common stock, shares outstanding (in shares)	49,209,000	48,408,000
Treasury stock, shares (in shares)	13,942,000	13,804,000

Condensed Consolidated Statem_2

Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenue:
Total revenue	$ 56,567	$ 65,532
Operating expenses:
Cost of revenue	2,207	2,324
Research, development and other related costs	27,039	26,515
Selling, general and administrative	30,569	34,702
Amortization expense	25,459	27,166
Litigation expense	1,290	7,316
Total operating expenses	86,564	98,023
Operating loss	(29,997)	(32,491)
Interest expense	(6,685)	(6,318)
Other income and expense, net	2,302	3,154
Loss before taxes	(34,380)	(35,655)
Benefit from income taxes	(8,950)	(2,638)
Net loss	(25,430)	(33,017)
Less: net loss attributable to noncontrolling interest	(347)
Net loss attributable to Xperi	$ (25,083)	$ (33,017)
Loss per share attributable to Xperi:
Basic	$ (0.51)	$ (0.67)
Diluted	(0.51)	(0.67)
Cash dividends declared per share	$ 0.20	$ 0.20
Weighted average number of shares used in per share calculations-basic	48,721	49,302
Weighted average number of shares used in per share calculations-diluted	48,721	49,302
Royalty and License Fees
Revenue:
Total revenue	$ 56,567	$ 65,532

Condensed Consolidated Statem_3

Condensed Consolidated Statements Of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (25,430)	$ (33,017)
Other comprehensive income (loss):
Net unrealized gains (losses) on available-for-sale debt securities, net of tax	178	(217)
Other comprehensive income (loss)	178	(217)
Comprehensive loss	(25,252)	(33,234)
Less: comprehensive loss attributable to noncontrolling interest	(347)
Comprehensive loss attributable to Xperi	$ (24,905)	$ (33,234)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Equity - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Noncontrolling Interest
Beginning balance at Dec. 31, 2017		$ 435,576	$ 60	$ 686,660	$ (319,397)	$ (303)	$ 68,556
Beginning balance (in shares) at Dec. 31, 2017			49,103,000		11,505,000
Cumulative-effect adjustment from adoption of ASU (ASU 2014-09) at Dec. 31, 2017		224,128					224,128
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(33,017)					(33,017)
Other comprehensive income (loss)		(217)				(217)
Cash dividends paid on common stock ($0.20 per share)		(9,886)					(9,886)
Issuance of common stock in connection with exercise of stock options		827		827
Issuance of common stock in connection with exercise of stock options (in shares)			45,000
Issuance of common stock in connection with employee common stock purchase plan		3,402		3,402
Issuance of common stock in connection with employee common stock purchase plan (in shares)			178,000
Issuance of restricted stock, net of shares canceled		1	$ 1
Issuance of restricted stock, net of shares cancelled (in shares)			677,000
Repurchases of common stock, shares exchanged		(2,901)			$ (2,901)
Repurchases of common stock, shares exchanged (in shares)			(133,000)		134,000
Repurchases of common stock		(14,960)			$ (14,960)
Repurchases of common stock (in shares)			(645,000)		645,000
Stock-based compensation expense		7,408		7,408
Ending balance at Mar. 31, 2018		610,361	$ 61	698,297	$ (337,258)	(520)	249,781
Ending balance (in shares) at Mar. 31, 2018			49,225,000		12,284,000
Beginning balance at Dec. 31, 2018		618,147	$ 62	730,695	$ (364,195)	(328)	253,208	$ (1,295)
Beginning balance (in shares) at Dec. 31, 2018			48,408,000		13,804,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of subsidiary shares to noncontrolling interest				22				(22)
Net loss		(25,430)					(25,083)	(347)
Other comprehensive income (loss)		178				178
Other	[1]	(2,859)					(2,859)
Cash dividends paid on common stock ($0.20 per share)		(9,822)					(9,822)
Issuance of common stock in connection with exercise of stock options		252		252
Issuance of common stock in connection with exercise of stock options (in shares)			14,000
Issuance of common stock in connection with employee common stock purchase plan		3,111		3,111
Issuance of common stock in connection with employee common stock purchase plan (in shares)			227,000
Issuance of restricted stock, net of shares canceled		1	$ 1
Issuance of restricted stock, net of shares cancelled (in shares)			698,000
Repurchases of common stock, shares exchanged		$ (3,131)			$ (3,131)
Repurchases of common stock, shares exchanged (in shares)			(138,000)		138,000
Repurchases of common stock (in shares)		0
Stock-based compensation expense		$ 7,623		7,623
Ending balance at Mar. 31, 2019		$ 588,070	$ 63	$ 741,703	$ (367,326)	$ (150)	$ 215,444	$ (1,664)
Ending balance (in shares) at Mar. 31, 2019			49,209,000		13,942,000
[1]	Refer to “Note 1 – The Company and Basis of Presentation

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement Of Stockholders Equity [Abstract]
Cash dividends paid on common stock, price per share	$ 0.20	$ 0.20

The Company And Basis Of Presen

The Company And Basis Of Presentation	3 Months Ended
	Mar. 31, 2019
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”) 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 March 31, 2019 and 2018, and for the three 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, 2018 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, 2018, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018, filed on February 20, 2019 (the “Form 10-K”). The results of operations for the three months ended March 31, 2019 are not necessarily indicative of the results that may be expected for the full year ended December 31, 2019 or any future period and the Company makes no representations related thereto. In the fourth quarter of 2018, the Company funded a new entity and issued shares to non-controlling interests. At the end of the fourth quarter of 2018, the entity was approximately 85% owned by the Company. As a result of issuing new shares in such entity to noncontrolling interests during the first quarter of 2019, the Company’s ownership interest of the entity decreased to approximately 84% as of March 31, 2019. The operating results of this entity have been consolidated in the Company’s consolidated financial statements since the fourth quarter of 2018. In the first quarter of 2019, the Company recorded an out-of-period adjustment to decrease current unbilled receivables and decrease retained earnings by

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2019
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” Leases Leases Recently Adopted Accounting Pronouncements In June 2018, the Financial Accounting Standards Board (“FASB”) issued Stock-based Compensation: Improvements to Nonemployee Share-based Payment Accounting,” In February 2016, the FASB issued ASU No. 2017-12, “ Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, In February 2016, the FASB issued ASU No. 2016-02, " Leases modified retrospective transition approach and elected the transition option The Company elected the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allowed it to carry forward the historical lease classification. Under the optional transition method, the Company opted to continue to apply the legacy guidance in ASC 840, Leases, including its disclosure requirements, in the comparative periods presented in the year it adopted the new leases standard, and therefore did not restate prior period results. The most significant impact from adopting Topic 842 was the initial recognition of operating lease ROU assets and operating lease liabilities of $17.6 million and $18.8 million, respectively, as of January 1, 2019. Operating lease liabilities consist of both current and noncurrent portions with the current portion included in the balance of accrued liabilities. The standard did not materially impact the Company’s Condensed Consolidated Statements of Operations and had no impact on cash flows. The cumulative effect of the changes made to the Company's Condensed Consolidated Balance Sheet as of January 1, 2019 for the adoption of Topic 842 was as follows (in thousands): Balance at December 31, 2018 Adjustments due to Topic 842 Balance at January 1, 2019 Assets Operating lease right-of-use assets $ — $ 17,594 $ 17,594 Liabilities Accrued liabilities $ 45,336 $ 3,858 (1) $ 49,194 Noncurrent operating lease liabilities $ — $ 13,736 $ 13,736 (1) Consists of a debit adjustment of $1.2 million to deferred rent to eliminate the existing balance and a credit adjustment of $5.1 million to record the current portion of operating lease liabilities. Recent Accounting Pronouncements In September 2016, the FASB issued ASU No. 2016-13, “ Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments

Revenue

Revenue	3 Months Ended
	Mar. 31, 2019
Revenue From Contract With Customer [Abstract]
Revenue	NOTE 3 – REVENUE On January 1, 2018, the Company adopted ASU No. 2014-09 (Topic 606) “ Revenue from Contracts with Customers 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 both fixed fee and minimum guarantee 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 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 from legal judgments in 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 containing 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 to a local tax authority. For additional detail on the Company's revenue disaggregated by geographic location, refer to Note 15 - " 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 March 31, 2019 2018 Revenue recognized in the period from: Amounts included in deferred revenue at the beginning of the period $ 1,043 $ 353 Performance obligations satisfied in previous periods (true ups and licensee reporting adjustments)* $ 1,165 $ — *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 March 31, 2019 December 31, 2018 Revenue from contracts with performance obligations expected to be satisfied in: One year or less $ 3,371 $ 3,080 More than one year but less than two years 194 2,289 Total $ 3,565 $ 5,369 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 Statements of Operations.

Composition Of Certain Financia

Composition Of Certain Financial Statement Captions	3 Months Ended
	Mar. 31, 2019
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): March 31, 2019 December 31, 2018 Prepaid income taxes $ 6,712 $ 6,768 Prepaid expenses 7,561 8,293 Other 2,960 2,373 $ 17,233 $ 17,434 Property and equipment, net, consisted of the following (in thousands): March 31, 2019 December 31, 2018 Equipment, furniture and other $ 29,640 $ 28,798 Building and improvements 18,258 18,258 Land 5,300 5,300 Leasehold improvements 6,383 6,367 59,581 58,723 Less: accumulated depreciation and amortization (29,354 ) (27,686 ) $ 30,227 $ 31,037 Depreciation and amortization expense for the three months ended March 31, 2019 and 2018 amounted to $1.7 million and $1.8 million, respectively. Accrued liabilities consisted of the following (in thousands): March 31, 2019 December 31, 2018 Employee compensation and benefits $ 11,251 $ 26,858 Third-party royalties 8,158 7,140 Current portion of operating lease liabilities 4,855 — Accrued expenses 2,699 3,994 Other 6,012 7,344 $ 32,975 $ 45,336 Accumulated other comprehensive loss consisted of the following (in thousands): March 31, 2019 December 31, 2018 Unrealized loss on available-for-sale debt securities, net of tax $ (150 ) $ (328 ) $ (150 ) $ (328 ) Other income and expense, net, consisted of the following (in thousands): Three Months Ended, March 31, 2019 March 31, 2018 Interest income from significant financing components under Topic 606 $ 1,866 $ 2,151 Interest income from investments 600 250 Unrealized loss on marketable equity securities (410 ) — Other income 246 753 $ 2,302 $ 3,154

Financial Instruments

Financial Instruments	3 Months Ended
	Mar. 31, 2019
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. Under ASU 2016-01 (Topic 321), equity securities are measured at fair value with unrealized gains and losses being recognized in other income and expense, net, on the Condensed Consolidated Statement of Operations. The following is a summary of marketable securities at March 31, 2019 and December 31, 2018 (in thousands): March 31, 2019 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Marketable securities Corporate bonds and notes $ 22,114 $ — $ (122 ) $ 21,992 Treasury and agency notes and bills 6,000 — (28 ) 5,972 Total debt securities 28,114 — (150 ) 27,964 Money market funds 21,340 — — 21,340 Marketable equity securities 5,662 — (2,626 ) 3,036 Total equity securities 27,002 — (2,626 ) 24,376 Total marketable securities $ 55,116 $ — $ (2,776 ) $ 52,340 Reported in: Cash and cash equivalents $ 21,340 Short-term investments 31,000 Total marketable securities $ 52,340 December 31, 2018 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Marketable securities Corporate bonds and notes $ 28,623 $ — $ (275 ) $ 28,348 Commercial paper 2,999 — — 2,999 Treasury and agency notes and bills 6,000 — (53 ) 5,947 Total debt securities 37,622 — (328 ) 37,294 Money market funds 11,499 — — 11,499 Marketable equity securities 5,662 — (2,217 ) 3,445 Total equity securities 17,161 — (2,217 ) 14,944 Total marketable securities $ 54,783 $ — $ (2,545 ) $ 52,238 Reported in: Cash and cash equivalents $ 11,499 Short-term investments 40,739 Total marketable securities $ 52,238 At March 31, 2019 and December 31, 2018, the Company had $107.5 million and $154.4 million, respectively, in cash, cash equivalents and short-term investments. These balances include $55.2 million and $102.1 million in cash held in operating accounts not included in the tables above at March 31, 2019 and December 31, 2018, respectively. Debt Securities The gross realized gains and losses on sales of marketable debt securities were not significant during the three months ended March 31, 2019 and 2018, respectively. Unrealized losses on marketable debt securities were $0.2 million and $0.3 million, net of tax, as of March 31, 2019 and December 31, 2018, 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 March 31, 2019 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 months ended March 31, 2019 and 2018, 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 March 31, 2019 and December 31, 2018, 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 March 31, 2019 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate bonds and notes $ — $ — $ 21,992 $ (122 ) $ 21,992 $ (122 ) Treasury and agency notes and bills — — 5,972 (28 ) 5,972 (28 ) Total $ — $ — $ 27,964 $ (150 ) $ 27,964 $ (150 ) Less Than 12 Months 12 Months or More Total December 31, 2018 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate bonds and notes $ 5,488 $ (2 ) $ 22,860 $ (273 ) $ 28,348 $ (275 ) Commercial paper 2,999 — — — 2,999 — Treasury and agency notes and bills — — 5,947 (53 ) 5,947 (53 ) Total $ 8,487 $ (2 ) $ 28,807 $ (326 ) $ 37,294 $ (328 ) The estimated fair value of marketable debt securities by contractual maturity at March 31, 2019 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 $ 23,989 Due in one to two years 3,975 Total $ 27,964 Equity Securities There were no realized gains or losses on sales of equity securities during the three months ended March 31, 2019 and 2018. The Company had unrealized losses of $0.4 million on marketable equity securities during the three months ended March 31, 2019, and none for the three months ended March 31, 2018. Cumulative unrealized losses on the investment amounted to $2.6 million through March 31, 2019. 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 held a 6.3% ownership interest in Onkyo and had one representative appointed to the board of directors of a subsidiary of Onkyo in November 2018. 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. Derivatives In the first quarter of 2019 , the Company began to use derivative financial instruments to manage foreign currency exchange rate risk. The Company does not enter into derivative transactions for trading purposes. Cash flows from the derivative programs are classified as cash flows from operating activities in the Condensed Consolidated Statement Cash Flows The Company’s derivative financial instruments consist of deliverable and non-deliverable foreign currency forward contracts, which are used primarily to hedge balance sheet and certain expenditure exposures. These instruments are generally short-term in nature, with typical maturities of less than one year, and are subject to fluctuations in foreign exchange rates. Fair values for derivative financial instruments are based on prices computed using third-party valuation models and are classified as Level 2 in accordance with the three-level hierarchy of fair value measurements. All the significant inputs to the third-party valuation models are observable in active markets. Inputs include current market-based parameters such as forward rates, yield curves and credit default swap pricing. For additional information related to the three-level hierarchy of fair value measurements, s ee “ Under the Company’s policy election, these derivatives are not designated as hedge instruments, which are measured and reported at fair value. Changes in the fair value of these undesignated derivatives are reported in other income and expense, net, on the Condensed Consolidated Statements of Operations. Realized losses and changes in the estimated fair value of the derivatives were not significant in the three months ended March 31, 2019. The Company did not engage in derivative contracts in 2018. The notional and fair values of all derivative instruments were as follows (in thousands): Undesignated derivatives (foreign exchange contracts) March 31, 2019 December 31, 2018 Liabilities Accrued liabilities $ (37 ) $ — Total fair value $ (37 ) $ — Total notional value $ 2,743 $ —

Fair Value

Fair Value	3 Months Ended
	Mar. 31, 2019
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, 2018 and March 31, 2019. 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 March 31, 2019 (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) $ 21,340 $ 21,340 $ — $ — Marketable equity securities (2) 3,036 3,036 — — Commercial paper - debt securities (2) — — — — Corporate bonds and notes - debt securities (2) 21,992 — 21,992 — Treasury and agency notes and bills - debt securities (2) 5,972 — 5,972 — Total Assets $ 52,340 $ 24,376 $ 27,964 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at March 31, 2019: (1) Reported as cash and cash equivalents. (2) Reported as short-term 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, 201 8 (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) $ 11,499 $ 11,499 $ — $ — Marketable equity securities (2) 3,445 3,445 — — Commercial paper - debt securities (2) 2,999 — 2,999 — Corporate bonds and notes - debt securities (2) 28,348 — 28,348 — Treasury and agency notes and bills - debt securities (2) 5,947 — 5,947 — Total Assets $ 52,238 $ 14,944 $ 37,294 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at December 31, 2018: (1) Reported as cash and cash equivalents. (2) Reported as short-term investments. Financial Instruments Not Recorded at Fair Value on a Recurring Basis The Company’s long-term debt is carried at historical cost and is measured at fair value on a quarterly basis for disclosure purposes. March 31, 2019 December 31, 2018 Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Long-term debt, net (1) $ 432,834 $ 426,077 $ 482,193 $ 450,083 (1) Carrying amounts of long-term debt are net of unamortized debt issuance costs of $11.2 million and $11.8 million as of March 31, 2019 and December 31, 2018, respectively. Debt T he Company’s long-term debt, net, is classified within Level 2. The fair value of the debt was estimated based on the quoted market prices for the same or similar issues or on the current rates offered to the Company for debt of the same remaining maturities.

Goodwill And Identified Intangi

Goodwill And Identified Intangible Assets	3 Months Ended
	Mar. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill And Identified Intangible Assets	NOTE 7 – GOODWILL AND IDENTIFIED INTANGIBLE ASSETS The Company's reporting units include the Product Licensing segment and the Semiconductor and IP Licensing segment. Of the carrying value of goodwill, 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 March 31, 2019 December 31, 2018 Life (Years) Gross Assets Accumulated Amortization Net Gross Assets Accumulated Amortization Net Acquired patents / core technology 3-15 $ 146,684 $ (130,815 ) $ 15,869 $ 146,684 $ (128,691 ) $ 17,993 Existing technology 5-10 206,878 (104,789 ) 102,089 206,878 (96,089 ) 110,789 Customer contracts and related relationships 3-9 291,769 (135,222 ) 156,547 291,769 (121,831 ) 169,938 Trademarks/trade name 4-10 40,083 (12,327 ) 27,756 40,083 (11,083 ) 29,000 Non-competition agreements 1 2,231 (2,231 ) — 2,231 (2,231 ) — Total intangible assets $ 687,645 $ (385,384 ) $ 302,261 $ 687,645 $ (359,925 ) $ 327,720 Amortization expense for the three months ended March 31, 2019 and 2018 amounted to $25.5 million and $27.2 million, respectively. As of March 31, 2019, the estimated future amortization expense of total intangible assets was as follows (in thousands): 2019 (remaining 9 months) $ 74,487 2020 88,231 2021 80,522 2022 32,083 2023 21,203 Thereafter 5,735 $ 302,261

Debt

Debt	3 Months Ended
	Mar. 31, 2019
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. On March 29, 2019, the Company made another voluntary prepayment of $50.0 million using cash on hand. 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 months ended March 31, 2019. At March 31, 2019, $444.0 million was outstanding with an interest rate, including the amortization of debt issuance costs, of 5.4%. Interest is payable monthly. There were also $11.2 million of unamortized debt issuance costs recorded as a reduction of the long-term portion of the debt. Interest expense was $6.7 million and $6.3 million for the three months ended March 31, 2019 and 2018, respectively. Amortized debt issuance costs, which were included in interest expense, amounted to $0.6 million and $0.7 million for the three months ended March 31, 2019 and 2018, respectively. Other than the voluntary prepayment of $50.0 million in March 2019, there were no other debt principal payments in the first quarter of 2019. There was a voluntary principal payment of $100.0 million during the three months ended March 31, 2018. As of March 31, 2019, future minimum principal payments for long-term debt are summarized as follows (in thousands): 2019 (remaining 9 months) $ — 2020 — 2021 — 2022 — 2023 444,000 Thereafter — Total $ 444,000

Net Loss Per Share

Net Loss Per Share	3 Months Ended
	Mar. 31, 2019
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 months ended March 31, 2019 and 2018. The following table sets forth the computation of basic and diluted shares (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Denominator: Weighted average common shares outstanding 48,721 49,302 Less: shares of restricted stock subject to repurchase — — Total common shares-basic 48,721 49,302 Effect of dilutive securities: Options — — Restricted stock awards and units — — Total common shares-diluted 48,721 49,302 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 months ended March 31, 2019 and 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 2.1 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 months ended March 31, 2019 because including them would have been anti-dilutive. For the three months ended 31, 2018, 3.1 million shares subject to stock options and restricted stock awards and units were excluded from the computation of diluted net loss per share because including them would have been anti-dilutive

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2019
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. There were no repurchases during the three months ended March 31, 2019. T Stock Option Plans The 2003 Plan As of March 31, 2019 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, 2018 678 $ 26.39 Options granted — — Options exercised (14 ) $ 18.27 Options canceled / forfeited / expired (16 ) $ 41.90 Balance at March 31, 2019 648 $ 26.18 Restricted Stock Awards and Units Information with respect to outstanding restricted stock awards and units as of March 31, 2019 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, 2018 2,149 757 2,906 $ 29.10 Awards and units granted 1,086 — 1,086 $ 22.98 Awards and units vested / earned (584 ) (113 ) (697 ) $ 32.67 Awards and units canceled / forfeited (37 ) (89 ) (126 ) $ 29.49 Balance at March 31, 2019 2,614 555 3,169 $ 26.20 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 March 31, 2019 At the 2019 annual stockholders meeting on May 3, 2019, shareholders approved an amendment to the IESPP adding an additional 0.3 million shares to the share reserve

Stock-Based Compensation Expens

Stock-Based Compensation Expense	3 Months Ended
	Mar. 31, 2019
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 months ended March 31, 2019 and 2018 is as follows (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Research, development and other related costs $ 3,603 $ 3,094 Selling, general and administrative 4,020 4,314 Total stock-based compensation expense 7,623 7,408 Tax effect on stock-based compensation expense (1,315 ) (1,256 ) Net effect on net income (loss) $ 6,308 $ 6,152 Stock-based compensation expense categorized by various equity components for the three months ended March 31, 2019 and 2018 is summarized in the table below (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Employee stock options $ 68 $ 177 Restricted stock awards and units 6,934 6,432 Employee stock purchase plan 621 799 Total stock-based compensation expense $ 7,623 $ 7,408 There were no options granted in the three months ended March 31, 2019 and 2018. ESPP grants occur in February and August. The following assumptions were used to value the ESPP shares for these grants: February 2019 February 2018 Expected life (years) 2.0 2.0 Risk-free interest rate 2.5 % 2.2 % Dividend yield 5.4 % 3.6 % Expected volatility 53.4 % 39.4 %

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 12 – INCOME TAXES For the three months ended March 31, 2019, the Company recorded an income tax benefit of $9.0 million on a pretax loss of $34.4 million, which resulted in an effective tax rate of 26.0%. The effective tax rate was primarily related to tax benefit from operating losses and the realization of certain tax credits, offset by foreign withholding taxes, certain non-deductible expenses, and shortfalls from stock-based compensation. For the three months ended March 31, 2018, the Company recorded an income tax benefit of $2.6 million, on a pretax loss of $35.7 million, which resulted in an effective tax rate of 7.4%. The effective tax rate was primarily related to tax benefit from losses and credits generated from operations offset by foreign withholding taxes, certain non-deductible expenses, valuation allowance recorded against the Company’s unutilized tax credits generated in the current year, and shortfalls from stock-based compensation 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 increase in income tax benefit for the three months ended March 31, 2019 as compared to the income tax benefit during the same period in the prior year is largely attributable to the realization of certain tax credits. As of March 31, 2019, unrecognized tax benefits were $33.7 million (which is included in long-term deferred tax and other liabilities on the Condensed Consolidated Balance Sheet), of which $21.3 million would affect the effective tax rate if recognized. As of March 31, 2018, unrecognized tax benefits were $33.8 million (which was 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. 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 three months ended March 31, 2019 and 2018, the Company recognized an insignificant amount of interest and penalties related to unrecognized tax benefits. Accrued interest and penalties were $1.0 million and $0.9 million as of March 31, 2019 and December 31, 2018, respectively. At March 31, 2019, the Company’s

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	NOTE 13 – LEASES Under Topic 842, a contract is a lease, or contains a lease, if the contract conveys the right to control the use of identified property, plant, or equipment (an identified asset) for a period of time in exchange for consideration. To determine whether a contract conveys the right to control the use of an identified asset for a period of time, an entity shall assess whether, throughout the period of use, the entity has both of the following: (a) the right to obtain substantially all of the economic benefits from use of the identified asset; and (b) the right to direct the use of the identified asset. The Company leases office and research facilities and office equipment under operating leases which expire at various dates through 2028. The Company’s leases have remaining lease terms of one year to ten years, some of which may include options to extend the leases for five years or longer, and some of which may include options to terminate the leases within one year or less. Leases with an initial term of 12 months or less are not recorded on the balance sheet; the Company recognizes lease expense for these leases on a straight-line basis over the lease term. As a practical expedient, the Company elected, for all office and facility leases, not to separate nonlease components (e.g., common-area maintenance costs) from lease components (e.g., fixed payments including rent) and instead to account for each separate lease component and its associated non-lease components as a single lease component. The Company uses its incremental borrowing rate for purposes of discounting lease payments. Lease cost is summarized in the table below (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Operating lease cost (1) $ 1,951 $ 1,834 (1) Includes short-term leases and variable lease costs, which were immaterial. Other information related to leases was as follows (in thousands, except lease term and discount rate): Three Months Ended March 31, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,554 ROU assets obtained in exchange for new lease liabilities: Operating leases $ 1,045 March 31, 2019 Weighted-average remaining lease term (years): Operating leases 5.2 Weighted-average discount rate: Operating leases 5.7 % Future minimum lease payments and related lease liabilities as of March 31, 2019 were as follows (in thousands): Operating Leases 2019 (remaining 9 months) $ 4,218 2020 4,852 2021 3,113 2022 2,532 2023 2,627 Thereafter 4,192 Total lease payments 21,534 Less: imputed interest (1) (3,099 ) Present value of lease liabilities: $ 18,435 Less: current obligations under leases (Accrued liabilities) 4,855 Noncurrent operating lease liabilities $ 13,580 (1) Calculated using the interest rate for each lease. Note: Future minimum lease payments exclude short-term leases as well as payments to landlords for variable common area maintenance, insurance and real estate taxes . As of December 31, 2018, future minimum lease payments were as follows (in thousands): Operating Leases 2019 $ 6,341 2020 5,292 2021 3,441 2022 3,047 2023 3,142 Thereafter 3,518 Total $ 24,781

Commitments And Contingencies

Commitments And Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments And Contingencies	NOTE 14 – COMMITMENTS AND CONTINGENCIES Purchase and Other Commitments There have been no material changes to the Company’s purchase and other commitments in the three months ended March 31, 2019. For detail, refer to “Note 15 – Commitments and Contingencies” 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. On November 21, 2018, the Ninth Circuit dismissed the appeal for lack of appellate jurisdiction and remanded the case to the district court for further proceedings. The parties have both filed second round motions for summary judgment, and Toshiba has filed a motion to strike two of Tessera’s expert reports. All three motions are set to be heard on August 22, 2019. Trial is set for October 19, 2020. 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	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Segment And Geographic Information	NOTE 15 – 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 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. (formerly 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 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 months ended March 31, 2019 and 2018 (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Revenue: Product Licensing segment $ 44,567 $ 53,216 Semiconductor and IP Licensing segment 12,000 12,316 Total revenue 56,567 65,532 Operating expenses: Product Licensing segment 45,757 43,891 Semiconductor and IP Licensing segment 10,238 19,430 Unallocated operating expenses (1) 30,569 34,702 Total operating expenses 86,564 98,023 Operating income (loss): Product Licensing segment (1,190 ) 9,325 Semiconductor and IP Licensing segment 1,762 (7,114 ) Unallocated operating expenses (1) (30,569 ) (34,702 ) Total operating loss $ (29,997 ) $ (32,491 ) (1) Unallocated operating expenses consist primarily of selling, 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 March 31, 2019 March 31, 2018 Korea $ 17,503 31 % $ 14,428 22 % Japan 17,232 31 19,345 30 U.S. 11,432 20 11,628 18 Europe and Middle East 4,000 7 3,781 6 China 3,443 6 14,145 21 Other 2,957 5 2,205 3 $ 56,567 100 % $ 65,532 100 % For the three months ended March 31, 2019 and 2018, there were one and one customer, respectively, that accounted for 10% or more of total revenue. As of March 31, 2019 and December 31, 2018, there were two and two customers, respectively, that each accounted for 10% or more of total accounts receivable.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	NOTE 16 - SUBSEQUENT EVENTS On May 2, 2019, the Board declared a cash dividend of $0.20 per share of common stock, payable on June 19, 2019 to the stockholders of record at the close of business on May 29, 2019.

Summary Of Significant Accoun_2

Summary Of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Basis of Accounting	The accompanying interim unaudited condensed consolidated financial statements as of March 31, 2019 and 2018, and for the three 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, 2018 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, 2018, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018, filed on February 20, 2019 (the “Form 10-K”).
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements In June 2018, the Financial Accounting Standards Board (“FASB”) issued Stock-based Compensation: Improvements to Nonemployee Share-based Payment Accounting,” In February 2016, the FASB issued ASU No. 2017-12, “ Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, In February 2016, the FASB issued ASU No. 2016-02, " Leases modified retrospective transition approach and elected the transition option The Company elected the package of practical expedients permitted under the transition guidance within the new standard, which among other things, allowed it to carry forward the historical lease classification. Under the optional transition method, the Company opted to continue to apply the legacy guidance in ASC 840, Leases, including its disclosure requirements, in the comparative periods presented in the year it adopted the new leases standard, and therefore did not restate prior period results. The most significant impact from adopting Topic 842 was the initial recognition of operating lease ROU assets and operating lease liabilities of $17.6 million and $18.8 million, respectively, as of January 1, 2019. Operating lease liabilities consist of both current and noncurrent portions with the current portion included in the balance of accrued liabilities. The standard did not materially impact the Company’s Condensed Consolidated Statements of Operations and had no impact on cash flows. The cumulative effect of the changes made to the Company's Condensed Consolidated Balance Sheet as of January 1, 2019 for the adoption of Topic 842 was as follows (in thousands): Balance at December 31, 2018 Adjustments due to Topic 842 Balance at January 1, 2019 Assets Operating lease right-of-use assets $ — $ 17,594 $ 17,594 Liabilities Accrued liabilities $ 45,336 $ 3,858 (1) $ 49,194 Noncurrent operating lease liabilities $ — $ 13,736 $ 13,736 (1) Consists of a debit adjustment of $1.2 million to deferred rent to eliminate the existing balance and a credit adjustment of $5.1 million to record the current portion of operating lease liabilities. Recent Accounting Pronouncements In September 2016, the FASB issued ASU No. 2016-13, “ Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments
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 both fixed fee and minimum guarantee 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 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 from legal judgments in 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 containing 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. 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 Statements of Operations.

Summary Of Significant Accoun_3

Summary Of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Schedule of Cumulative Effect of Change in Adoption	The cumulative effect of the changes made to the Company's Condensed Consolidated Balance Sheet as of January 1, 2019 for the adoption of Topic 842 was as follows (in thousands): Balance at December 31, 2018 Adjustments due to Topic 842 Balance at January 1, 2019 Assets Operating lease right-of-use assets $ — $ 17,594 $ 17,594 Liabilities Accrued liabilities $ 45,336 $ 3,858 (1) $ 49,194 Noncurrent operating lease liabilities $ — $ 13,736 $ 13,736 (1) Consists of a debit adjustment of $1.2 million to deferred rent to eliminate the existing balance and a credit adjustment of $5.1 million to record the current portion of operating lease liabilities.

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Mar. 31, 2019
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 March 31, 2019 2018 Revenue recognized in the period from: Amounts included in deferred revenue at the beginning of the period $ 1,043 $ 353 Performance obligations satisfied in previous periods (true ups and licensee reporting adjustments)* $ 1,165 $ — *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.
Schedule of Remaining Performance Obligations	The Company's remaining revenue under contracts with performance obligations was as follows (in thousands): As of March 31, 2019 December 31, 2018 Revenue from contracts with performance obligations expected to be satisfied in: One year or less $ 3,371 $ 3,080 More than one year but less than two years 194 2,289 Total $ 3,565 $ 5,369

Composition Of Certain Financ_2

Composition Of Certain Financial Statement Captions (Tables)	3 Months Ended
	Mar. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Other Current Assets	Other current assets consisted of the following (in thousands): March 31, 2019 December 31, 2018 Prepaid income taxes $ 6,712 $ 6,768 Prepaid expenses 7,561 8,293 Other 2,960 2,373 $ 17,233 $ 17,434
Property and Equipment, Net	Property and equipment, net, consisted of the following (in thousands): March 31, 2019 December 31, 2018 Equipment, furniture and other $ 29,640 $ 28,798 Building and improvements 18,258 18,258 Land 5,300 5,300 Leasehold improvements 6,383 6,367 59,581 58,723 Less: accumulated depreciation and amortization (29,354 ) (27,686 ) $ 30,227 $ 31,037
Accrued Liabilities	Accrued liabilities consisted of the following (in thousands): March 31, 2019 December 31, 2018 Employee compensation and benefits $ 11,251 $ 26,858 Third-party royalties 8,158 7,140 Current portion of operating lease liabilities 4,855 — Accrued expenses 2,699 3,994 Other 6,012 7,344 $ 32,975 $ 45,336
Accumulated Other Comprehensive Loss	Accumulated other comprehensive loss consisted of the following (in thousands): March 31, 2019 December 31, 2018 Unrealized loss on available-for-sale debt securities, net of tax $ (150 ) $ (328 ) $ (150 ) $ (328 )
Other Income and Expense, Net	Other income and expense, net, consisted of the following (in thousands): Three Months Ended, March 31, 2019 March 31, 2018 Interest income from significant financing components under Topic 606 $ 1,866 $ 2,151 Interest income from investments 600 250 Unrealized loss on marketable equity securities (410 ) — Other income 246 753 $ 2,302 $ 3,154

Financial Instruments (Tables)

Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2019
Investments Debt And Equity Securities [Abstract]
Summary of Marketable Securities	The following is a summary of marketable securities at March 31, 2019 and December 31, 2018 (in thousands): March 31, 2019 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Marketable securities Corporate bonds and notes $ 22,114 $ — $ (122 ) $ 21,992 Treasury and agency notes and bills 6,000 — (28 ) 5,972 Total debt securities 28,114 — (150 ) 27,964 Money market funds 21,340 — — 21,340 Marketable equity securities 5,662 — (2,626 ) 3,036 Total equity securities 27,002 — (2,626 ) 24,376 Total marketable securities $ 55,116 $ — $ (2,776 ) $ 52,340 Reported in: Cash and cash equivalents $ 21,340 Short-term investments 31,000 Total marketable securities $ 52,340 December 31, 2018 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Marketable securities Corporate bonds and notes $ 28,623 $ — $ (275 ) $ 28,348 Commercial paper 2,999 — — 2,999 Treasury and agency notes and bills 6,000 — (53 ) 5,947 Total debt securities 37,622 — (328 ) 37,294 Money market funds 11,499 — — 11,499 Marketable equity securities 5,662 — (2,217 ) 3,445 Total equity securities 17,161 — (2,217 ) 14,944 Total marketable securities $ 54,783 $ — $ (2,545 ) $ 52,238 Reported in: Cash and cash equivalents $ 11,499 Short-term investments 40,739 Total marketable securities $ 52,238
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 March 31, 2019 and December 31, 2018, 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 March 31, 2019 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate bonds and notes $ — $ — $ 21,992 $ (122 ) $ 21,992 $ (122 ) Treasury and agency notes and bills — — 5,972 (28 ) 5,972 (28 ) Total $ — $ — $ 27,964 $ (150 ) $ 27,964 $ (150 ) Less Than 12 Months 12 Months or More Total December 31, 2018 Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Corporate bonds and notes $ 5,488 $ (2 ) $ 22,860 $ (273 ) $ 28,348 $ (275 ) Commercial paper 2,999 — — — 2,999 — Treasury and agency notes and bills — — 5,947 (53 ) 5,947 (53 ) Total $ 8,487 $ (2 ) $ 28,807 $ (326 ) $ 37,294 $ (328 )
Estimated Fair Value of Marketable Debt Securities by Contractual Maturity	The estimated fair value of marketable debt securities by contractual maturity at March 31, 2019 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 $ 23,989 Due in one to two years 3,975 Total $ 27,964
Summary of Notional and Fair Values of all Derivative Instruments	The notional and fair values of all derivative instruments were as follows (in thousands): Undesignated derivatives (foreign exchange contracts) March 31, 2019 December 31, 2018 Liabilities Accrued liabilities $ (37 ) $ — Total fair value $ (37 ) $ — Total notional value $ 2,743 $ —

Fair Value (Tables)

Fair Value (Tables)	3 Months Ended
	Mar. 31, 2019
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 March 31, 2019 (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) $ 21,340 $ 21,340 $ — $ — Marketable equity securities (2) 3,036 3,036 — — Commercial paper - debt securities (2) — — — — Corporate bonds and notes - debt securities (2) 21,992 — 21,992 — Treasury and agency notes and bills - debt securities (2) 5,972 — 5,972 — Total Assets $ 52,340 $ 24,376 $ 27,964 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at March 31, 2019: (1) Reported as cash and cash equivalents. (2) Reported as short-term 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, 201 8 (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) $ 11,499 $ 11,499 $ — $ — Marketable equity securities (2) 3,445 3,445 — — Commercial paper - debt securities (2) 2,999 — 2,999 — Corporate bonds and notes - debt securities (2) 28,348 — 28,348 — Treasury and agency notes and bills - debt securities (2) 5,947 — 5,947 — Total Assets $ 52,238 $ 14,944 $ 37,294 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at December 31, 2018: (1) Reported as cash and cash equivalents. (2) Reported as short-term investments.
Schedule of Carrying Amounts and Estimated Fair Values	The carrying amounts and estimated fair values are as follows (in thousands): March 31, 2019 December 31, 2018 Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Long-term debt, net (1) $ 432,834 $ 426,077 $ 482,193 $ 450,083 (1) Carrying amounts of long-term debt are net of unamortized debt issuance costs of $11.2 million and $11.8 million as of March 31, 2019 and December 31, 2018, respectively. Debt

Goodwill And Identified Intan_2

Goodwill And Identified Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Identified Intangible Assets	Identified intangible assets consisted of the following (in thousands): Average March 31, 2019 December 31, 2018 Life (Years) Gross Assets Accumulated Amortization Net Gross Assets Accumulated Amortization Net Acquired patents / core technology 3-15 $ 146,684 $ (130,815 ) $ 15,869 $ 146,684 $ (128,691 ) $ 17,993 Existing technology 5-10 206,878 (104,789 ) 102,089 206,878 (96,089 ) 110,789 Customer contracts and related relationships 3-9 291,769 (135,222 ) 156,547 291,769 (121,831 ) 169,938 Trademarks/trade name 4-10 40,083 (12,327 ) 27,756 40,083 (11,083 ) 29,000 Non-competition agreements 1 2,231 (2,231 ) — 2,231 (2,231 ) — Total intangible assets $ 687,645 $ (385,384 ) $ 302,261 $ 687,645 $ (359,925 ) $ 327,720
Estimated Future Amortization Expense	As of March 31, 2019, the estimated future amortization expense of total intangible assets was as follows (in thousands): 2019 (remaining 9 months) $ 74,487 2020 88,231 2021 80,522 2022 32,083 2023 21,203 Thereafter 5,735 $ 302,261

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Summarize of Future Minimum Principal Payments for Long-term Debt	As of March 31, 2019, future minimum principal payments for long-term debt are summarized as follows (in thousands): 2019 (remaining 9 months) $ — 2020 — 2021 — 2022 — 2023 444,000 Thereafter — Total $ 444,000

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2019
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 March 31, 2019 March 31, 2018 Denominator: Weighted average common shares outstanding 48,721 49,302 Less: shares of restricted stock subject to repurchase — — Total common shares-basic 48,721 49,302 Effect of dilutive securities: Options — — Restricted stock awards and units — — Total common shares-diluted 48,721 49,302

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2019
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, 2018 678 $ 26.39 Options granted — — Options exercised (14 ) $ 18.27 Options canceled / forfeited / expired (16 ) $ 41.90 Balance at March 31, 2019 648 $ 26.18
Summary of Restricted Stock Awards and Units	Information with respect to outstanding restricted stock awards and units as of March 31, 2019 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, 2018 2,149 757 2,906 $ 29.10 Awards and units granted 1,086 — 1,086 $ 22.98 Awards and units vested / earned (584 ) (113 ) (697 ) $ 32.67 Awards and units canceled / forfeited (37 ) (89 ) (126 ) $ 29.49 Balance at March 31, 2019 2,614 555 3,169 $ 26.20

Stock-Based Compensation Expe_2

Stock-Based Compensation Expense (Tables)	3 Months Ended
	Mar. 31, 2019
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 months ended March 31, 2019 and 2018 is as follows (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Research, development and other related costs $ 3,603 $ 3,094 Selling, general and administrative 4,020 4,314 Total stock-based compensation expense 7,623 7,408 Tax effect on stock-based compensation expense (1,315 ) (1,256 ) Net effect on net income (loss) $ 6,308 $ 6,152
Stock-Based Compensation Expense Categorized by Equity Components	Stock-based compensation expense categorized by various equity components for the three months ended March 31, 2019 and 2018 is summarized in the table below (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Employee stock options $ 68 $ 177 Restricted stock awards and units 6,934 6,432 Employee stock purchase plan 621 799 Total stock-based compensation expense $ 7,623 $ 7,408
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: February 2019 February 2018 Expected life (years) 2.0 2.0 Risk-free interest rate 2.5 % 2.2 % Dividend yield 5.4 % 3.6 % Expected volatility 53.4 % 39.4 %

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Schedule of Lease Cost	Lease cost is summarized in the table below (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Operating lease cost (1) $ 1,951 $ 1,834 (1) Includes short-term leases and variable lease costs, which were immaterial.
Schedule of Other Information Related to Leases	Other information related to leases was as follows (in thousands, except lease term and discount rate): Three Months Ended March 31, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,554 ROU assets obtained in exchange for new lease liabilities: Operating leases $ 1,045 March 31, 2019 Weighted-average remaining lease term (years): Operating leases 5.2 Weighted-average discount rate: Operating leases 5.7 %
Schedule of Future Minimum Lease Payments and Related Lease Liabilities	Future minimum lease payments and related lease liabilities as of March 31, 2019 were as follows (in thousands): Operating Leases 2019 (remaining 9 months) $ 4,218 2020 4,852 2021 3,113 2022 2,532 2023 2,627 Thereafter 4,192 Total lease payments 21,534 Less: imputed interest (1) (3,099 ) Present value of lease liabilities: $ 18,435 Less: current obligations under leases (Accrued liabilities) 4,855 Noncurrent operating lease liabilities $ 13,580 (1) Calculated using the interest rate for each lease. Note: Future minimum lease payments exclude short-term leases as well as payments to landlords for variable common area maintenance, insurance and real estate taxes .
Schedule of Future Minimum Lease Payments	As of December 31, 2018, future minimum lease payments were as follows (in thousands): Operating Leases 2019 $ 6,341 2020 5,292 2021 3,441 2022 3,047 2023 3,142 Thereafter 3,518 Total $ 24,781

Segment And Geographic Inform_2

Segment And Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Schedule of Amortization and Depreciation, by Segment	The following table sets forth the Company’s segment revenue, operating expenses and operating income (loss) for the three months ended March 31, 2019 and 2018 (in thousands): Three Months Ended March 31, 2019 March 31, 2018 Revenue: Product Licensing segment $ 44,567 $ 53,216 Semiconductor and IP Licensing segment 12,000 12,316 Total revenue 56,567 65,532 Operating expenses: Product Licensing segment 45,757 43,891 Semiconductor and IP Licensing segment 10,238 19,430 Unallocated operating expenses (1) 30,569 34,702 Total operating expenses 86,564 98,023 Operating income (loss): Product Licensing segment (1,190 ) 9,325 Semiconductor and IP Licensing segment 1,762 (7,114 ) Unallocated operating expenses (1) (30,569 ) (34,702 ) Total operating loss $ (29,997 ) $ (32,491 ) (1) Unallocated operating expenses consist primarily of selling, 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 March 31, 2019 March 31, 2018 Korea $ 17,503 31 % $ 14,428 22 % Japan 17,232 31 19,345 30 U.S. 11,432 20 11,628 18 Europe and Middle East 4,000 7 3,781 6 China 3,443 6 14,145 21 Other 2,957 5 2,205 3 $ 56,567 100 % $ 65,532 100 %

The Company And Basis Of Pres_2

The Company And Basis Of Presentation - Narrative (Details) $ in Thousands		3 Months Ended
		Mar. 31, 2019USD ($)customersemiconductor_chip	Dec. 31, 2018
Organization Consolidation And Presentation [Line Items]
Other | $	[1]	$ (2,859)
Research Entity
Organization Consolidation And Presentation [Line Items]
Ownership interest, percentage		84.00%	85.00%
Minimum
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
[1]	Refer to “Note 1 – The Company and Basis of Presentation

Summary Of Significant Accoun_4

Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating lease, right-of-use asset	$ 17,221
Operating lease liability	$ 18,435
Accounting Standards Update 2016-02
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating lease, right-of-use asset		$ 17,594
Operating lease liability		$ 18,800

Summary Of Significant Accoun_5

Summary Of Significant Accounting Policies - Schedule of Cumulative Effect of Change in Adoption (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Assets
Operating lease right-of-use assets	$ 17,221
Liabilities
Accrued liabilities	32,975		$ 45,336
Noncurrent operating lease liabilities	$ 13,580
Accounting Standards Update 2016-02
Assets
Operating lease right-of-use assets		$ 17,594
Liabilities
Accrued liabilities		49,194
Noncurrent operating lease liabilities		13,736
Adjustments Due to Topic 842 | Accounting Standards Update 2016-02
Assets
Operating lease right-of-use assets		17,594
Liabilities
Accrued liabilities		3,858
Noncurrent operating lease liabilities		$ 13,736

Summary Of Significant Accoun_6

Summary Of Significant Accounting Policies - Schedule of Cumulative Effect of Change in Adoption (Parenthetical) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Current portion of operating lease liabilities	$ 4,855
Adjustments Due to Topic 842 | Accounting Standards Update 2016-02
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Deferred rent		$ (1,200)
Current portion of operating lease liabilities		$ 5,100

Revenue - Revenue Recognized in

Revenue - Revenue Recognized in Period (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenue From Contract With Customer [Abstract]
Amounts included in deferred revenue at the beginning of the period	$ 1,043	$ 353
Performance obligations satisfied in previous periods (true ups and licensee reporting adjustments)	$ 1,165

Revenue - Performance Obligatio

Revenue - Performance Obligations (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligations	$ 3,565	$ 5,369
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		$ 3,080
Performance obligations expected to be satisfied, expected timing		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligations	$ 3,371
Performance obligations expected to be satisfied, expected timing	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		$ 2,289
Performance obligations expected to be satisfied, expected timing		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-04-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligations	$ 194
Performance obligations expected to be satisfied, expected timing	1 year

Revenue - Performance Obligat_2

Revenue - Performance Obligations (Details 1) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Revenue From Contract With Customer [Abstract]
Remaining performance obligations	$ 3,565	$ 5,369

Composition Of Certain Financ_3

Composition Of Certain Financial Statement Captions - Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Prepaid income taxes	$ 6,712	$ 6,768
Prepaid expenses	7,561	8,293
Other	2,960	2,373
Other current assets, total	$ 17,233	$ 17,434

Composition Of Certain Financ_4

Composition Of Certain Financial Statement Captions - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 59,581	$ 58,723
Less: accumulated depreciation and amortization	(29,354)	(27,686)
Property and equipment, net	30,227	31,037
Equipment, furniture and other
Property, Plant and Equipment [Line Items]
Property and equipment, gross	29,640	28,798
Building and improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	18,258	18,258
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,300	5,300
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 6,383	$ 6,367

Composition Of Certain Financ_5

Composition Of Certain Financial Statement Captions - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Depreciation and amortization of property and equipment	$ 1.7	$ 1.8

Composition Of Certain Financ_6

Composition Of Certain Financial Statement Captions - Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Employee compensation and benefits	$ 11,251	$ 26,858
Third-party royalties	8,158	7,140
Current portion of operating lease liabilities	4,855
Accrued expenses	2,699	3,994
Other	6,012	7,344
Accrued liabilities, total	$ 32,975	$ 45,336

Composition Of Certain Financ_7

Composition Of Certain Financial Statement Captions - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Unrealized loss on available-for-sale debt securities, net of tax	$ (150)	$ (328)
Accumulated other comprehensive income (loss)	$ (150)	$ (328)

Composition Of Certain Financ_8

Composition Of Certain Financial Statement Captions - Other Income and Expense, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Interest income from significant financing components under Topic 606	$ 56,567	$ 65,532
Interest income from investments	600	250
Unrealized loss on marketable equity securities	(410)	0
Other income	246	753
Other income and expense, net	2,302	3,154
Financing
Disaggregation of Revenue [Line Items]
Interest income from significant financing components under Topic 606	$ 1,866	$ 2,151

Financial Instruments - Summary

Financial Instruments - Summary of Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Marketable Securities [Line Items]
Debt securities, Cost	$ 28,114	$ 37,622
Debt securities, Gross Unrealized Gains	0	0
Debt securities, Gross Unrealized Losses	(150)	(328)
Debt securities, Estimated Fair Values	27,964	37,294
Equity securities, Cost	27,002	17,161
Equity securities, Gross Unrealized Gains	0	0
Equity securities, Gross Unrealized Losses	(2,626)	(2,217)
Equity securities, Estimated Fair Values	24,376	14,944
Marketable securities, Cost	55,116	54,783
Marketable securities, Gross Unrealized Gains	0	0
Marketable securities, Gross Unrealized Losses	(2,776)	(2,545)
Marketable securities, Estimated Fair Values	52,340	52,238
Marketable equity securities
Marketable Securities [Line Items]
Equity securities, Cost	5,662	5,662
Equity securities, Gross Unrealized Gains	0	0
Equity securities, Gross Unrealized Losses	(2,626)	(2,217)
Equity securities, Estimated Fair Values	3,036	3,445
Corporate bonds and notes
Marketable Securities [Line Items]
Debt securities, Cost	22,114	28,623
Debt securities, Gross Unrealized Gains	0	0
Debt securities, Gross Unrealized Losses	(122)	(275)
Debt securities, Estimated Fair Values	21,992	28,348
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	(28)	(53)
Debt securities, Estimated Fair Values	5,972	5,947
Money market funds
Marketable Securities [Line Items]
Equity securities, Cost	21,340	11,499
Equity securities, Gross Unrealized Gains	0	0
Equity securities, Gross Unrealized Losses	0	0
Equity securities, Estimated Fair Values	21,340	11,499
Cash and cash equivalents
Marketable Securities [Line Items]
Marketable securities, Estimated Fair Values	21,340	11,499
Short-term Investments
Marketable Securities [Line Items]
Marketable securities, Estimated Fair Values	$ 31,000	40,739
Commercial paper
Marketable Securities [Line Items]
Debt securities, Cost		2,999
Debt securities, Gross Unrealized Gains		0
Debt securities, Gross Unrealized Losses		0
Debt securities, Estimated Fair Values		$ 2,999

Financial Instruments - Additio

Financial Instruments - Additional Information (Details) - USD ($) shares in Millions	Sep. 19, 2018	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Schedule Of Investments [Line Items]
Cash, cash equivalents and short -term investments		$ 107,500,000		$ 154,400,000
Gross realized gains and losses on sales of marketable securities		0	$ 0
Unrealized loss net of tax on marketable debt securities		200,000		300,000
Impairment charges related to marketable debt securities		0	0
Equity securities, realized gains or losses on sales		0	0
Marketable equity securities, unrealized losses		(410,000)	$ 0
Cumulative unrealized losses on the investment		2,600,000
Realized losses and changes in estimated fair value of derivatives		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 short -term investments		$ 55,200,000		$ 102,100,000

Financial Instruments - Fair Va

Financial Instruments - Fair Value and Gross Unrealized Losses Related to Individual Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 0	$ 8,487
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	0	(2)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	27,964	28,807
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(150)	(326)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	27,964	37,294
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(150)	(328)
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	0	5,488
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	0	(2)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	21,992	22,860
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(122)	(273)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	21,992	28,348
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(122)	(275)
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value		2,999
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		2,999
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses		0
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	5,972	5,947
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(28)	(53)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	5,972	5,947
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	$ (28)	$ (53)

Financial Instruments - Estimat

Financial Instruments - Estimated Fair Value of Marketable Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Investments Debt And Equity Securities [Abstract]
Due in one year or less	$ 23,989
Due in one to two years	3,975
Total	$ 27,964	$ 37,294

Financial Instruments - Summa_2

Financial Instruments - Summary of Notional and Fair Values of all Derivative Instruments (Details) $ in Thousands	Mar. 31, 2019USD ($)
Liabilities
Accrued liabilities	$ (37)
Total fair value	(37)
Total notional value	$ 2,743

Fair Value - Schedule of Fair V

Fair Value - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Details) - Recurring - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 52,340	$ 52,238
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	24,376	14,944
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	27,964	37,294
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	21,340	11,499
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	21,340	11,499
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	3,036	3,445
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	3,036	3,445
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	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	0
Commercial paper - debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	2,999
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	0	2,999
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	21,992	28,348
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	21,992	28,348
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	5,972	5,947
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	5,972	5,947
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

Fair Value - Schedule of Carryi

Fair Value - Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, net - Carrying Amount	$ 432,834	$ 482,193
Recurring
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term debt, net - Carrying Amount	432,834	482,193
Long-term debt, net - Estimated Fair Value	$ 426,077	$ 450,083

Fair Value - Schedule of Carr_2

Fair Value - Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments on Recurring Basis (Parenthetical) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Term B Loan Facility
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Unamortized debt issuance costs	$ 11.2	$ 11.8

Goodwill And Identified Intan_3

Goodwill And Identified Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Goodwill [Line Items]
Goodwill	$ 385,784		$ 385,784
Amortization expense	25,459	$ 27,166
Product Licensing Segment
Goodwill [Line Items]
Goodwill	378,100		378,100
Semiconductor and IP Licensing Segment
Goodwill [Line Items]
Goodwill	$ 7,700		$ 7,700

Goodwill And Identified Intan_4

Goodwill And Identified Intangible Assets - Identified Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (385,384)	$ (359,925)
Net	302,261
Intangible assets, gross	687,645	687,645
Intangible assets, net	302,261	327,720
Acquired patents / core technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	146,684	146,684
Accumulated Amortization	(130,815)	(128,691)
Net	$ 15,869	17,993
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	$ 206,878	206,878
Accumulated Amortization	(104,789)	(96,089)
Net	$ 102,089	110,789
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
Accumulated Amortization	(135,222)	(121,831)
Net	$ 156,547	169,938
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
Accumulated Amortization	(12,327)	(11,083)
Net	$ 27,756	29,000
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
Accumulated Amortization	(2,231)	(2,231)
Net	$ 0	$ 0

Goodwill And Identified Intan_5

Goodwill And Identified Intangible Assets - Estimated Future Amortization Expense (Details) $ in Thousands	Mar. 31, 2019USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
2019 (remaining 9 months)	$ 74,487
2020	88,231
2021	80,522
2022	32,083
2023	21,203
Thereafter	5,735
Net	$ 302,261

Debt - Narrative (Details)

Debt - Narrative (Details) - USD ($)	Mar. 29, 2019	Jan. 23, 2018	Dec. 01, 2016	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Line of Credit Facility [Line Items]
Borrowings				$ 444,000,000
Voluntary prepayment against the term loan	$ 50,000,000	$ 100,000,000		50,000,000	$ 100,000,000
Interest expense				6,685,000	6,318,000
Other debt principal payments				0
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	$ 444,000,000
Debt instrument, prepayment premium		1.00%
Interest rate				5.40%
Unamortized debt issuance costs				$ 11,200,000		$ 11,800,000
Interest expense				6,700,000	6,300,000
Amortization of debt issuance costs				$ 600,000	$ 700,000
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	Mar. 31, 2019USD ($)
Debt Disclosure [Abstract]
2023	$ 444,000
Total	$ 444,000

Net Loss Per Share - Computatio

Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Denominator:
Weighted average common shares outstanding (in shares)	48,721	49,302
Less: shares of restricted stock subject to repurchase (in shares)	0	0
Total common shares-basic (in shares)	48,721	49,302
Effect of dilutive securities:
Options (in shares)	0	0
Restricted stock awards and units (in shares)	0	0
Total common shares-diluted (in shares)	48,721	49,302

Net Loss Per Share - Additional

Net Loss Per Share - Additional Information (Details) - shares shares in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Shares of common stock excluded from the computation of net loss per share	2.1	3.1

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	140 Months Ended
	Mar. 31, 2019	Mar. 31, 2019	May 03, 2019
Debt and Equity Securities, FV-NI [Line Items]
Treasury stock, total repurchase during period (in shares)	0	13,279,000
Treasury stock, average price of share repurchased (in dollars per share)		$ 26.25
Treasury stock, total cost of repurchased stock		$ 348.6
Stock repurchase program, remaining amount available for repurchase	$ 101.4	$ 101.4
Employee Stock Purchase Plan
Debt and Equity Securities, FV-NI [Line Items]
Shares reserved for grant (in shares)	910,000	910,000
Employee Stock Purchase Plan | Subsequent Event
Debt and Equity Securities, FV-NI [Line Items]
Shares reserved for grant (in shares)			300,000
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)	2,200,000	2,200,000

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Stock Option Activity (Detail) - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Number of Shares Subject to Options
Number of Shares, Beginning balance (shares)	678,000
Number of Shares, Options granted (shares)	0	0
Number of Shares, Options exercised (shares)	(14,000)
Number of Shares, Options cancelled / forfeited / expired (shares)	(16,000)
Number of Shares, Ending balance (shares)	648,000
Weighted Average Exercise Price Per Share
Weighted Average Exercise Price Per Share, Beginning balance (USD per share)	$ 26.39
Weighted Average Exercise Price Per Share, Options granted (USD per share)	0
Weighted Average Exercise Price Per Share, Options exercised (USD per share)	18.27
Weighted Average Exercise Price Per Share, Options cancelled / forfeited / expired (USD per share)	41.90
Weighted Average Exercise Price Per Share, Ending balance (USD per share)	$ 26.18

Stockholders' Equity - Summar_2

Stockholders' Equity - Summary of Restricted Stock Awards and Units (Detail) - Restricted Stock shares in Thousands	3 Months Ended
	Mar. 31, 2019$ / 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)	2,906
Restricted stock awards and units, granted (shares)	1,086
Restricted stock awards and units, vested / earned (shares)	(697)
Restricted stock awards and units, cancelled / forfeited (shares)	(126)
Restricted stock awards and units, ending balance (shares)	3,169
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	$ 29.10
Weighted average grant date fair value per share of restricted stock and units, granted (USD per share) | $ / shares	22.98
Weighted average grant date fair value per share of restricted stock and units, vested / earned (USD per share) | $ / shares	32.67
Weighted average grant date fair value of restricted stock and units, cancelled / forfeited (USD per share) | $ / shares	29.49
Weighted average grant date fair value per share of restricted stock and units, ending balance (USD per share) | $ / shares	$ 26.20
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)	2,149
Restricted stock awards and units, granted (shares)	1,086
Restricted stock awards and units, vested / earned (shares)	(584)
Restricted stock awards and units, cancelled / forfeited (shares)	(37)
Restricted stock awards and units, ending balance (shares)	2,614
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)	757
Restricted stock awards and units, granted (shares)	0
Restricted stock awards and units, vested / earned (shares)	(113)
Restricted stock awards and units, cancelled / forfeited (shares)	(89)
Restricted stock awards and units, ending balance (shares)	555

Stock-Based Compensation Expe_3

Stock-Based Compensation Expense - Effect of Recording Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 7,623	$ 7,408
Tax effect on stock-based compensation expense	(1,315)	(1,256)
Net effect on net income (loss)	6,308	6,152
Research, development and other related costs
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	3,603	3,094
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 4,020	$ 4,314

Stock-Based Compensation Expe_4

Stock-Based Compensation Expense - Stock-Based Compensation Expense Categorized by Equity Components (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 7,623	$ 7,408
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	621	799
Employee stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	68	177
Restricted stock awards and units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 6,934	$ 6,432

Stock-Based Compensation Expe_5

Stock-Based Compensation Expense - Schedule of Assumptions Used to Value Options Granted (Details) - shares	1 Months Ended		3 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Mar. 31, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Options granted (shares)			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	2.50%	2.20%
Dividend yield	5.40%	3.60%
Expected volatility	53.40%	39.40%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Provision for (benefit from) income taxes	$ (8,950)	$ (2,638)
Loss before taxes	$ (34,400)	$ (35,700)
Effective tax rate (percent)	26.00%	7.40%
Unrecognized tax benefits	$ 33,700	$ 33,800
Unrecognized tax benefits that would impact the effective income tax rate	21,300	$ 22,200
Interest and tax penalties related to unrecognized tax benefits	$ 1,000		$ 900

Leases - Additional Information

Leases - Additional Information (Details)	3 Months Ended
	Mar. 31, 2019
Lessor Lease Description [Line Items]
Operating lease existence of option to extend	true
Operating lease description	The Company’s leases have remaining lease terms of one year to ten years, some of which may include options to extend the leases for five years or longer, and some of which may include options to terminate the leases within one year or less. Leases with an initial term of 12 months or less are not recorded on the balance sheet
Minimum
Lessor Lease Description [Line Items]
Remaining lease term	1 year
Lessor term of period to extend	5 years
Maximum [Member]
Lessor Lease Description [Line Items]
Remaining lease term	10 years

Leases - Schedule of Lease Cost

Leases - Schedule of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Leases [Abstract]
Operating lease cost	$ 1,951	$ 1,834

Leases - Schedule of Other Info

Leases - Schedule of Other Information Related to Leases (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 1,554
Operating lease, ROU assets obtained in exchange for new lease liabilities	$ 1,045
Operating leases, weighted average remaining lease term (years)	5 years 2 months 12 days
Operating leases, weighted average discount rate	5.70%

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments and Related Lease Liabilities (Details) $ in Thousands	Mar. 31, 2019USD ($)
Operating Leases
2019 (remaining 9 months)	$ 4,218
2020	4,852
2021	3,113
2022	2,532
2023	2,627
Thereafter	4,192
Total lease payments	21,534
Less: Imputed interest	(3,099)
Present value of lease liabilities:	18,435
Current portion of operating lease liabilities	4,855
Noncurrent operating lease liabilities	$ 13,580

Leases - Schedule of Future M_2

Leases - Schedule of Future Minimum Lease Payments (Details) $ in Thousands	Dec. 31, 2018USD ($)
Operating Leases
2019	$ 6,341
2020	5,292
2021	3,441
2022	3,047
2023	3,142
Thereafter	3,518
Total	$ 24,781

Segment and Geographic Inform_3

Segment and Geographic Information - Additional Information (Details) - segment	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
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%
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 Accounts Receivable | Customer Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage (or more)	10.00%		10.00%

Segment And Geographic Inform_4

Segment And Geographic Information - Schedule of Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Total revenue	$ 56,567	$ 65,532
Total operating expenses	86,564	98,023
Total operating income (loss)	(29,997)	(32,491)
Operating Segments | Product Licensing Segment
Segment Reporting Information [Line Items]
Total revenue	44,567	53,216
Total operating expenses	45,757	43,891
Total operating income (loss)	(1,190)	9,325
Operating Segments | Semiconductor and IP Licensing Segment
Segment Reporting Information [Line Items]
Total revenue	12,000	12,316
Total operating expenses	10,238	19,430
Total operating income (loss)	1,762	(7,114)
Segment Reconciling Items
Segment Reporting Information [Line Items]
Total operating expenses	30,569	34,702
Total operating income (loss)	$ (30,569)	$ (34,702)

Segment And Geographic Inform_5

Segment And Geographic Information - Schedule of Geographic Revenue Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 56,567	$ 65,532
Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	100.00%	100.00%
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 17,232	$ 19,345
Japan | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	31.00%	30.00%
Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 17,503	$ 14,428
Korea | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	31.00%	22.00%
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 11,432	$ 11,628
U.S. | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	20.00%	18.00%
Europe and Middle East
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 4,000	$ 3,781
Europe and Middle East | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	7.00%	6.00%
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 3,443	$ 14,145
China | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	6.00%	21.00%
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 2,957	$ 2,205
Other | Total Revenue | Geographic Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	5.00%	3.00%

Subsequent Events - Additional

Subsequent Events - Additional Information (Details) - $ / shares	May 02, 2019	Mar. 31, 2019	Mar. 31, 2018
Subsequent Event [Line Items]
Cash dividends declared per share (in dollars per share)		$ 0.20	$ 0.20
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared per share (in dollars per share)	$ 0.20
Dividends declaration date	May 2, 2019
Dividends payable date	Jun. 19, 2019
Dividends record date	May 29, 2019