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Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2018	Apr. 26, 2018
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
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		49,030,824

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net loss	$ (33,017)	$ (11,029)
Adjustments to reconcile net loss to net cash from operating activities:
Depreciation of property and equipment	1,775	1,834
Amortization of intangible assets	27,166	28,554
Stock-based compensation expense	7,408	7,081
Deferred income tax	(6,743)	(37,950)
Amortization of premium or discount on investments and other	1,012	87
Changes in operating assets and liabilities:
Accounts receivable	(7,059)	(7,132)
Unbilled contracts receivable, net	31,123	30,620
Other assets	(770)	6,575
Accounts payable	(609)	(3,292)
Accrued legal fees	(787)	1,499
Accrued and other liabilities	(17,543)	183
Deferred revenue	2,694	1,932
Net cash from operating activities	4,650	18,962
Cash flows from investing activities:
Purchases of property and equipment	(768)	(565)
Purchases of short-term investments	0	(11,493)
Proceeds from sales of short-term investments	8,540	1,035
Proceeds from maturities of short-term investments	7,800	4,650
Net cash from investing activities	15,572	(6,373)
Cash flows from financing activities:
Dividend paid	(9,886)	(9,843)
Repayment of debt	(100,000)	(1,500)
Proceeds from exercise of stock options	829	4,241
Proceeds from employee stock purchase program	3,402	1,155
Repurchase of common stock	(17,861)	(3,251)
Net cash from financing activities	(123,516)	(9,198)
Net increase (decrease) in cash, cash equivalents and restricted cash	(103,294)	3,391
Cash and cash equivalents at beginning of period	138,260	65,626
Cash, cash equivalents and restricted cash at end of period	34,966	69,017
Supplemental disclosure of cash flow information:
Interest paid	5,650	8,100
Income taxes paid, net of refunds	$ 3,963	$ 3,040

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 34,966	$ 138,260
Short-term investments	45,824	62,432
Accounts receivable, net	23,107	17,010
Unbilled contracts receivable	204,765	10,866
Other current assets	17,364	16,949
Total current assets	326,026	245,517
Long-term unbilled contracts receivable	71,331	2,930
Property and equipment, net	33,423	34,442
Intangible assets, net	404,623	431,789
Goodwill	385,574	385,574
Other assets	5,383	9,772
Total assets	1,226,360	1,110,024
Current liabilities:
Accounts payable	3,624	4,233
Accrued legal fees	6,696	7,483
Accrued liabilities	30,785	47,969
Current portion of long-term debt	0	34,451
Deferred revenue	4,597	2,686
Total current liabilities	45,702	96,822
Long-term deferred tax liabilities	72,564	15,085
Long-term debt, net	480,330	545,211
Other long-term liabilities	17,403	17,330
Commitments and contingencies (Note 13)
Stockholders’ equity:
Preferred stock: $0.001 par value; 10,000 shares authorized and no shares issued and outstanding	0	0
Common stock: $0.001 par value; 150,000 shares authorized; 61,509 and 60,608 shares issued, respectively, and 49,225 and 49,103 shares outstanding, respectively	61	60
Additional paid-in capital	698,297	686,660
Treasury stock at cost: 12,284 and 11,505 shares of common stock at each period end, respectively	(337,258)	(319,397)
Accumulated other comprehensive loss	(520)	(303)
Retained earnings	249,781	68,556
Total stockholders’ equity	610,361	435,576
Total liabilities and stockholders’ equity	$ 1,226,360	$ 1,110,024

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 680	$ 1,181
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)	60,502,000	60,608,000
Common stock, shares outstanding (in shares)	49,283,000	49,103,000
Treasury stock, shares (in shares)	11,219,000	11,505,000

Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue:
Royalty and license fees	$ 65,532	$ 67,255
Total revenue	65,532	67,255
Operating expenses:
Cost of revenue	2,324	1,400
Research, development and other related costs	26,515	26,012
Selling, general and administrative	34,702	41,205
Amortization expense	27,166	28,555
Litigation expense	7,316	9,978
Total operating expenses	98,023	107,150
Operating loss	(32,491)	(39,895)
Interest expense	(6,318)	(6,459)
Other income and expense, net	3,154	46
Loss before taxes	(35,655)	(46,308)
Benefit from income taxes	(2,638)	(35,279)
Net loss	$ (33,017)	$ (11,029)
Basic and diluted net loss per share:
Basic (in dollars per share)	$ (0.67)	$ (0.22)
Diluted (in dollars per share)	(0.67)	(0.22)
Cash dividends declared per share (in dollars per share)	$ 0.20	$ 0.20
Weighted average number of shares used in per share calculations-basic (in shares)	49,302	49,139
Weighted average number of shares used in per share calculations-diluted (in shares)	49,302	49,139

Condensed Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (33,017)	$ (11,029)
Other comprehensive income (loss):
Net unrealized gains (losses) on available-for-sale securities, net of tax	(217)	38
Other comprehensive income (loss)	(217)	38
Comprehensive loss	$ (33,234)	$ (10,991)

The Company And Basis Of Presentation	3 Months Ended
The Company And Basis Of Presentation	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company And Basis Of Presentation	THE COMPANY AND BASIS OF PRESENTATION Xperi Corporation (the “Company”) completed the acquisition of DTS, Inc. ("DTS"), a publicly-traded developer of sound-based technologies, in December 2016. At the time of the acquisition, Tessera Technologies, Inc. and DTS were combined under the newly-formed Tessera Holding Corporation. During the first quarter of 2017, the Company introduced its new corporate name, “Xperi Corporation”, stock ticker, “XPER”, and launched a new corporate logo. Xperi Corporation licenses its innovative products, technologies and inventions to global electronics companies which, in turn, integrate the technologies into their own consumer electronics and semiconductor products. The Company's technologies and inventions are widely adopted and used every day by millions of people. The Company's audio technologies have shipped in billions of devices for the home, mobile and automotive markets. The Company's imaging technologies are embedded in more than 25% of smartphones on the market today. The Company's semiconductor packaging and interconnect technologies have been licensed to more than 100 customers and have shipped in over 100 billion semiconductor chips. The accompanying interim unaudited condensed consolidated financial statements as of March 31, 2018 and 2017, 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, 2017 have been derived from the Company’s annual audited financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted in accordance with such rules and regulations. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments necessary (consisting of normal recurring adjustments) to state fairly the financial position of the Company and its results of operations and cash flows as of and for the periods presented. These financial statements should be read in conjunction with the annual audited financial statements and notes thereto as of and for the year ended December 31, 2017, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017, filed on February 23, 2018 (the “Form 10-K”). The results of operations for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for the full year ended December 31, 2018 or any future period and the Company makes no representations related thereto. Reclassification Certain reclassifications have been made to prior period balances in order to conform to the current period’s presentation.

Summary Of Significant Accounting Policies

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Summary Of Significant Accounting Policies

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The Company’s significant accounting policies are detailed in "Note 2 - Summary of Significant Accounting Policies" in its Form 10-K for the year ended December 31, 2017. Significant changes to its accounting policies as a result of adopting Topic 606 are discussed in Note 3 - Revenue.

Recently Adopted Accounting Pronouncements

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This ASU addresses the classification of certain specific cash flow issues including debt prepayment or extinguishment costs, settlement of certain debt instruments, contingent consideration payments made after a business combination, proceeds from the settlement of certain insurance claims and distributions received from equity method investees. This ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years, with early adoption permitted. The Company adopted this standard as of January 1, 2018. The adoption of this standard did not have a material impact on the Company's consolidated financial statements.

In October 2016, the FASB issued ASU No. 2016-16, "Intra-Entity Transfers of Assets Other Than Inventory." This ASU requires entities to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. For public entities, this ASU is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within those annual reporting periods. The Company adopted this standard as of January 1, 2018 on a prospective basis. The adoption of this standard did not have a material impact on the Company's consolidated financial statements.

In May 2017, the FASB issued ASU No. 2017-09, Compensation-Stock Compensation (Topic 718) Scope of Modification Accounting. ASU 2017-09 provides guidance about which changes to the terms or conditions of a share-based payment awarded require an entity to apply modification accounting. The standard is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The Company adopted the standard as of January 1, 2018 on a prospective basis. The adoption of this standard did not have a material impact on the Company's consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09 (Topic 606) "Revenue from Contracts with Customers." Topic 606 supersedes the revenue recognition requirements in Topic 605 “Revenue Recognition” (Topic 605), and requires entities to recognize revenue when control of goods or services is transferred to customers at an amount that reflects the consideration the entity expects to be entitled in exchange for the goods or services. Under the prior standard, licensing companies generally reported revenue from per-unit royalty based arrangements one quarter in arrears. Under the new guidance, the Company estimates per-unit royalty-based revenue prior to receiving customer royalty reports. The Company also expects the standard to have a significant impact on the timing of revenue recognition associated with its fixed fee and minimum guarantee arrangements, as a majority of such revenue which had previously been recognized over the license term is expected to be recognized at the inception of the license term. On January 1, 2018, the Company adopted the new standard using the modified retrospective method, under which the Company recorded a $224 million cumulative net of tax adjustment to the opening balance of retained earnings on January 1, 2018. The adjustment was determined by measuring the impact of the new standard on existing contracts that were not completed as of December 31, 2017. Prior period comparative information has not been restated and continues to be reported under Topic 605 in effect for those periods. The Company expects this new standard to have a material impact on its revenue and its consolidated statement of operations and balance sheet on an ongoing basis, with no impact on the timing of customer billings or on cash flows. See “Note 3 - Revenue" for further discussion.

The cumulative effect of the changes made to the Company's condensed consolidated balance sheet for the adoption of Topic 606 was as follows (in thousands):



BALANCE SHEET	Balance at December 31, 2017		Adjustments due to Topic 606			Balance at January 1, 2018
Assets
Unbilled contracts receivable	$	10,866	$	188,760		$	199,626
Other current assets	16,949		(2,000		)	14,949
Long-term unbilled contracts receivable	2,930		105,193			108,123
Other assets	9,772		(3,656		)	6,116
Liabilities
Accrued liabilities	47,969		432			48,401
Deferred revenue	2,686		(783		)	1,903
Long-term deferred tax liabilities	15,085		64,520			79,605

Equity
Retained earnings	68,556		224,128			292,684

The most significant impact from adopting Topic 606 was a substantial increase in unbilled contracts receivable, long-term deferred tax liabilities and retained earnings, which was driven primarily by applying the standard on fixed fee and minimum guarantee contracts that were not completed as of December 31, 2017, and secondarily by recording to retained earnings those royalties from customer shipments completed in the fourth quarter of 2017 and reported to the Company in the first quarter of 2018. The adjustments noted above had no impact on the Company's Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2018.

Adoption of the new revenue standard had the following impact on the Company's condensed consolidated financial statements as compared to the comparable results under the previous accounting standards (in thousands, except per share amounts):



	Three months ended March 31, 2018
STATEMENT OF OPERATIONS	As Reported			Amounts under Topic 605			Effect of Change Higher/(lower)

Royalty and license fees	$	65,532		$	96,160		$	(30,628	)
Cost of revenue	2,324			2,099			225
Operating loss	(32,491		)	(1,638		)	(30,853		)
Other income and expense, net	3,154			1,003			2,151
Loss before taxes	(35,655		)	(6,953		)	(28,702		)
Provision for (benefit from) income taxes	(2,638		)	2,250			(4,888		)
Net loss	(33,017		)	(9,203		)	(23,814		)

Basic/Diluted net loss per share	$	(0.67	)	$	(0.19	)	$	(0.48	)



	As of March 31, 2018
BALANCE SHEET	As Reported		Amounts under Topic 605		Effect of Change Higher/(lower)
Assets
Unbilled contracts receivable	$	204,765	$	10,340	$	194,425
Other current assets	17,364		19,114		(1,750		)
Long-term unbilled contracts receivable	71,331		2,488		68,843
Other assets	5,383		7,571		(2,188		)
Liabilities
Accrued liabilities	30,785		30,687		98
Deferred revenue	4,597		5,636		(1,039		)
Long-term deferred tax liabilities	72,564		12,610		59,954
Equity
Retained earnings	249,781		49,464		200,317

Recent Accounting Pronouncements

In February 2016, the FASB issued ASU No. 2016-02, "Leases" (Topic 842) (ASU 2016-02), which generally requires companies to recognize operating and financing lease liabilities and corresponding right-of-use assets on the balance sheet. This guidance will be effective for the Company in the first quarter of 2019, and early adoption is permitted. The Company will adopt the new standard effective January 1, 2019. While the Company continues to evaluate the effect of adopting this guidance on its consolidated financial statements and related disclosures, it is expected the Company's operating leases, as disclosed in Note 13 - "Commitments and Contingencies," will be subject to the new standard. The Company will recognize right-of-use assets and operating lease liabilities on its consolidated balance sheets upon adoption, which will increase total assets and liabilities, respectively.

In September 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which introduces an approach based on expected losses to estimate credit losses on certain types of financial instruments. It also modifies the impairment model for available-for-sale debt securities and provides for a simplified accounting model for purchased financial assets with credit deterioration since their origination. ASU 2016-13 is effective for the Company in the first quarter of the year ending December 31, 2020. The Company is in the process of evaluating the impact of the adoption of this new standard on its consolidated financial statements.

Revenue

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Revenue

REVENUE

As discussed in Note 2, on January 1, 2018, the Company adopted Topic 606 using the modified retrospective method. Results for reporting periods beginning January 1, 2018 are presented under Topic 606, while prior period amounts are not restated and continue to be reported in accordance with the historic accounting under Topic 605.

Revenue Recognition

The Company derives its revenue primarily from royalty and license fees for rights to use the Company’s intellectual property and technologies (“IP”). Revenue is recognized upon transfer of control of promised products, services or IP rights to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products, services or licensing of the IP rights.

Certain licensees have entered into fixed fee or minimum guarantee arrangements, whereby licensees pay a fixed fee for the right to incorporate the Company's technology in the licensee's products over the license term. In arrangements with a minimum guarantee, the fixed fee component corresponds to a minimum number of units or dollars that the customer must produce or pay, with additional per-unit fees for any units or dollars exceeding the minimum. In most cases, the customer pays the fixed license fee in specified installments over the license term. For these agreements, the Company recognizes the full fixed fee as revenue at the beginning of the license term, when the licensee has the right to use the IP and begins to benefit from the license.

If the contract term of a fixed fee or minimum guarantee arrangement is longer than one year, the Company also considers the scheduled payment arrangements to determine whether a significant financing component exists. In general, if the payment arrangements extend beyond the initial twelve months of the contract, the Company treats a portion of the payments as a significant financing component. When the payments are expected to be received within one year or less, the Company does not adjust the promised amount of consideration for the effects of a financing component. The discount rate used for each arrangement reflects the rate that would be used in a separate financing transaction between the Company and the licensee at contract inception, and takes into account the credit characteristics of the licensee and market interest rates as of the date of the agreement. As such, the amount of fixed fee revenue recognized at the beginning of the license term will be reduced by the calculated financing component. As payments are received from the licensee, the Company recognizes a portion of the financing component as interest income, reported as other income and expense in the 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 shipment activity takes place. The Company estimates the royalties earned each quarter based on its forecast of manufacturing and sales activity incurred by its licensees in that quarter. Any differences between actual royalties owed by a licensee and the Company’s quarterly estimate are recognized in the following quarter, when the licensee’s royalty report is received. Estimating licensees’ quarterly royalties prior to receiving the royalty reports requires the Company to make significant assumptions and judgments that could have a material impact on the amount of revenue it reports on a quarterly basis.

The Company actively monitors and enforces its IP, including seeking appropriate compensation from customers that have under-reported royalties owed under a license agreement and from third parties that utilize the Company’s intellectual property without a license. As a result of these activities, the Company may, from time to time, recognize revenue from payments resulting from periodic compliance audits of licensees for underreporting royalties incurred in prior periods, as part of a settlement of a patent infringement dispute, or legal judgments from a license dispute. These recoveries and settlements may cause revenue to be higher than expected during a particular reporting period and such recoveries may not occur in subsequent periods. The Company recognizes revenue from recoveries when a binding agreement has been executed and the Company concludes collection under that agreement is likely.

In some instances, the Company may enter into license agreements that contain multiple performance obligations that include engineering services in addition to a technology or software license. For such arrangements where all components are capable of being distinct and accounted for as separate performance obligations, the Company allocates revenue to each performance obligation based on its relative standalone selling price. The Company generally determines standalone selling prices based on the prices ordinarily charged to customers, or in some cases by applying a reasonable cost-plus margin. The consideration for engineering services is recognized as the underlying performance obligations are satisfied. Generally, the Company satisfies performance obligations over time and therefore recognizes revenue over time by measuring the progress toward completion of the performance obligation at each reporting period.

Revenue is recognized gross of withholding taxes that are remitted directly by the Company's licensees directly to a local tax authority.

For additional detail on the Company's revenue disaggregated by geographic location, refer to Note 14 - "Segment and Geographic Information."

Contract Balances

Unbilled Contracts Receivable

Timing of revenue recognition may differ significantly from the timing of invoicing to customers. Accounts receivable, net, include amounts billed and currently due from customers. Unbilled contracts receivable represent 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 occurs when performance obligations are satisfied over time.

The following table presents additional revenue and contract disclosures (in thousands):



	Three months ended March 31,
	2018		2017
Revenue recognized in the period from:
Amounts included in deferred revenue at the beginning of the period	$	353	$	236
Performance obligations satisfied in previous periods (true ups or settlements)	—		—

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, 2018		December 31, 2017
Revenue from contracts with performance obligations expected to be satisfied in:
One year or less	$	4,442	$	2,440
More than one year but less than two years	175		149
More than two years	274		240
Total	$	4,891	$	2,829

Practical Expedients

The Company expenses sales commissions when incurred because the amortization period generally would have been one year or less. In addition, sales commissions have historically not been a significant expense and are not contemplated to be significant in the future. Sales commissions are recorded in selling, general and administrative expenses in the consolidated statement of operations.

Composition Of Certain Financial Statement Captions

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Composition Of Certain Financial Statement Captions

COMPOSITION OF CERTAIN FINANCIAL STATEMENT CAPTIONS

Other current assets consisted of the following (in thousands):



	March 31, 2018		December 31, 2017
Prepaid income taxes	$	6,609	$	6,713
Prepaid expenses	7,009		6,655
Other	3,746		3,581
	$	17,364	$	16,949

Property and equipment, net consisted of the following (in thousands):



	March 31, 2018			December 31, 2017
Equipment, furniture and other	$	26,735		$	26,029
Building and improvements	18,222			18,222
Land	5,300			5,300
Leasehold improvements	6,437			6,469
	56,694			56,020
Less: accumulated depreciation and amortization	(23,271		)	(21,578		)
	$	33,423		$	34,442

Depreciation and amortization expense for the three months ended March 31, 2018 and 2017 amounted to $1.8 million and $1.8 million, respectively.

Accrued liabilities consisted of the following (in thousands):



	March 31, 2018		December 31, 2017
Employee compensation and benefits	$	21,093	$	37,056
Other	9,692		10,913
	$	30,785	$	47,969

Accumulated other comprehensive loss consisted of the following (in thousands):



	March 31, 2018			December 31, 2017
Unrealized loss on available-for-sale securities, net of tax	$	(520	)	$	(303	)
	$	(520	)	$	(303	)

Other income and expense, net, consisted of the following (in thousands):



	For the three months ended,
	March 31, 2018		March 31, 2017
Interest income from significant financing components under Topic 606	$	2,151	$	—
Interest income from investments	250		213
Other income (losses)	753		(167		)
	$	3,154	$	46

Financial Instruments

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Financial Instruments

FINANCIAL INSTRUMENTS

The following is a summary of marketable securities at March 31, 2018 and December 31, 2017 (in thousands):



	March 31, 2018
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Values
Available-for-sale securities
Corporate bonds and notes	$	37,945	$	—	$	(441	)	$	37,504
Commercial paper	2,399		—		—			2,399
Treasury and agency notes and bills	6,000		—		(79		)	5,921
Money market funds	2,124		—		—			2,124
Total available-for-sale securities	$	48,468	$	—	$	(520	)	$	47,948
Reported in:
Cash and cash equivalents								$	2,124
Short-term investments								45,824
Total marketable securities								$	47,948



	December 31, 2017
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Values
Available-for-sale securities
Corporate bonds and notes	$	45,803	$	—	$	(230	)	$	45,573
Commercial paper	2,392		—		(2		)	2,390
Treasury and agency notes and bills	6,000		—		(71		)	5,929
Certificates of deposit	8,540		—		—			8,540
Money market funds	40,413		—		—			40,413
Total available-for-sale securities	$	103,148	$	—	$	(303	)	$	102,845
Reported in:
Cash and cash equivalents								$	40,413
Short-term investments								62,432
Total marketable securities								$	102,845

At March 31, 2018 and December 31, 2017, the Company had $80.8 million and $200.7 million, respectively, in cash, cash equivalents and short-term investments. These balances include $32.8 million and $97.8 million in cash held in operating accounts not included in the tables above at March 31, 2018 and December 31, 2017, respectively.

The gross realized gains and losses on sales of marketable securities were not significant during the three months ended March 31, 2018 and 2017.

Unrealized losses were $0.5 million and $0.3 million, net of tax, as of March 31, 2018 and December 31, 2017, respectively. These amounts were related to temporary fluctuations in value of the remaining 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, 2018 because the Company has the intent and ability to hold these investments to allow for recovery, does not anticipate having to sell these securities with unrealized losses and continues to receive interest at the maximum contractual rate. For the three months ended March 31, 2018 and 2017, respectively, the Company did not record any impairment charges related to its marketable securities.

The following table summarizes the fair value and gross unrealized losses related to individual available-for-sale securities at March 31, 2018 and December 31, 2017, which have been in a continuous unrealized loss position, aggregated by investment category and length of time (in thousands):



March 31, 2018	Less Than 12 Months					12 Months or More					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Corporate bonds and notes	$	30,557	$	(401	)	$	6,947	$	(40	)	$	37,504	$	(441	)
Treasury and agency notes and bills	—		—			5,921		(79		)	5,921		(79		)
Total	$	30,557	$	(401	)	$	12,868	$	(119	)	$	43,425	$	(520	)



December 31, 2017	Less Than 12 Months					12 Months or More					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Corporate bonds and notes	$	30,811	$	(189	)	$	14,762	$	(41	)	$	45,573	$	(230	)
Commercial paper	2,390		(2		)	—		—			2,390		(2		)
Treasury and agency notes and bills	—		—			5,929		(71		)	5,929		(71		)
Total	$	33,201	$	(191	)	$	20,691	$	(112	)	$	53,892	$	(303	)

The estimated fair value of marketable securities by contractual maturity at March 31, 2018 is shown below (in thousands). Actual maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations without call or prepayment penalties.



	Estimated Fair Value
Due in one year or less	$	19,224
Due in one to two years	19,070
Due in two to three years	9,654
Total	$	47,948

Fair Value

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value

FAIR VALUE

The Company follows the authoritative guidance for fair value measurement and the fair value option for financial assets and financial liabilities. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability, or an exit price, in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The established fair value hierarchy requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. There are three levels of inputs that may be used to measure fair value:



Level 1		Quoted prices in active markets for identical assets.
Level 2		Observable market-based inputs or unobservable inputs that are corroborated by market data.
Level 3		Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.

When applying fair value principles in the valuation of assets, the Company is required to maximize the use of quoted market prices and minimize the use of unobservable inputs. The Company calculates the fair value of its Level 1 and Level 2 instruments based on the exchange traded price of similar or identical instruments, where available, or based on other observable inputs. There were no significant transfers into or out of Level 1 or Level 2 that occurred between December 31, 2017 and March 31, 2018.

The following is a list of the Company’s assets required to be measured at fair value on a recurring basis and where they were classified within the hierarchy as of March 31, 2018 (in thousands):



	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Marketable securities
Money market funds (1)	$	2,124	$	2,124	$	—	$	—
Corporate bonds and notes (2)	37,504		—		37,504		—
Treasury and agency notes and bills (2)	5,921		—		5,921		—
Commercial paper (2)	2,399		—		2,399		—
Total Assets	$	47,948	$	2,124	$	45,824	$	—

The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at March 31, 2018:


(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, 2017 (in thousands):



	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Marketable securities
Money market funds (1)	$	40,413	$	40,413	$	—	$	—
Certificates of deposit (2)	8,540		—		8,540		—
Corporate bonds and notes (2)	45,573		—		45,573		—
Treasury and agency notes and bills (2)	5,929		—		5,929		—
Commercial paper (2)	2,390		—		2,390		—
Total Assets	$	102,845	$	40,413	$	62,432	$	—

The following footnotes indicate where the noted items were recorded in the Consolidated Balance Sheet at December 31, 2017:


(1)	Reported as cash and cash equivalents.


(2)	Reported as short-term investments.

The Company also has outstanding debt at March 31, 2018 and December 31, 2017 that is considered a level 2 liability and is measured at fair value on a recurring basis. See “Note 8 - Debt” for additional information. At March 31, 2018 and December 31, 2017, the fair value of the Company's debt was not materially different than the outstanding principal amount.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Goodwill And Identified Intangible Assets

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill And Identified Intangible Assets

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 $377.9 million was allocated to the Product Licensing segment and approximately $7.7 million was allocated to the Semiconductor and IP Licensing segment as of March 31, 2018 and December 31, 2017, respectively.

Identified intangible assets consisted of the following (in thousands):



		March 31, 2018							December 31, 2017
	Average Life (Years)	Gross Assets		Accumulated Amortization			Net		Gross Assets		Accumulated Amortization			Net
Acquired patents / core technology	3-15	$	142,584	$	(117,314	)	$	25,270	$	142,584	$	(113,349	)	$	29,235
Existing technology	5-10	204,394		(70,085		)	134,309		204,394		(61,518		)	142,876
Customer contracts and related relationships	3-9	291,769		(81,658		)	210,111		291,769		(68,267		)	223,502
Trademarks/trade name	4-10	40,083		(7,354		)	32,729		40,083		(6,111		)	33,972
Non-competition agreements	1	2,231		(2,231		)	—		2,231		(2,231		)	—
Total amortizable intangible assets		681,061		(278,642		)	402,419		681,061		(251,476		)	429,585
In-process research and development		2,204		—			2,204		2,204		—			2,204
Total intangible assets		$	683,265	$	(278,642	)	$	404,623	$	683,265	$	(251,476	)	$	431,789

Amortization expense for the three months ended March 31, 2018 and 2017 amounted to $27.2 million and $28.6 million, respectively.

As of March 31, 2018, the estimated future amortization expense of total (amortizable) intangible assets was as follows (in thousands):



2018 (remaining 9 months)	$	80,775
2019	98,855
2020	87,140
2021	79,478
2022	31,173
Thereafter	24,998
	$	402,419

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Debt

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Debt

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 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 million under the Term B Loan facility. Net proceeds were used on December 1, 2016, together with cash and cash equivalents, to finance the acquisition of DTS.

On January 23, 2018, the Company and the loan parties entered into an amendment to the Credit Agreement (the “Amendment”). In connection with the Amendment, the Company made a voluntary prepayment of $100.0 million of the term loan outstanding under the Credit Agreement using cash on hand. The Amendment provided for, among other things, (i) a replacement of the outstanding initial term loan with the new tranche term B-1 loan (the “Amended Term B Loan”) in a principal amount of $494.0 million, (ii) a reduction of the interest rate margin applicable to such loan to (x) in the case of Eurodollar loans, 2.50% per annum and (y) in the case of base rate loans, 1.50% per annum, (iii) a prepayment premium of 1.00% in connection with any repricing transaction with respect to the Amended Term B Loan within six months of the closing date of the Amendment, and (iv) certain amendments to provide the Company with additional flexibility under the covenant governing restricted payments.

The Company’s obligations under the Credit Agreement, as amended by the Amendment, continue to be guaranteed by substantially all of the Company’s subsidiaries, and secured by substantially all of the assets of the Company and its subsidiaries. The Credit Agreement contains customary events of default, upon the occurrence of which, after any applicable grace period, the lenders will have the ability to accelerate all outstanding loans thereunder. The Credit Agreement contains customary representations and warranties and affirmative and negative covenants that, among other things, restrict the ability of the Company to create or incur certain liens, incur or guarantee additional indebtedness, merge or consolidate with other companies, transfer or sell assets and make restricted payments. The Company was in compliance with all requirements during the three months ended March 31, 2018.

All lenders of the Term B Loan Facility participated in the Amendment and the changes in terms were not considered substantial. Accordingly, the repricing event was accounted for as a debt modification. In connection with the repricing, the Company incurred and expensed $1.1 million in third party costs, which were recorded in selling, general and administrative expense in the Condensed Consolidated Statement of Operations, in the first quarter of 2018. In addition, the Company elected to continue to defer the unamortized debt issuance costs related to the partial pay-down of the debt as the prepayment was factored into the terms agreed to on the debt.

At March 31, 2018, $494 million was outstanding with an interest rate, including the amortization of debt issuance costs, of 5.1%. Interest is payable monthly. There were also $13.7 million of unamortized debt issuance costs recorded as a reduction of the long-term portion of the debt. Interest expense was $6.3 million and $6.5 million for the three months ended March 31, 2018 and 2017, respectively. Amortized debt issuance costs, which were included in the interest expense, amounted to $0.7 million and $0.6 million for the three months ended March 31, 2018 and 2017, respectively. Other than the voluntary prepayment of $100 million in January 2018, there were no other debt principal payments in the first quarter of 2018 as the prepayment exceeded the minimum principal payment requirements. During the three months ended March 31, 2017, there was a debt principal payment of $1.5 million.

As of March 31, 2018, future minimum principal payments for long-term debt are summarized as follows (in thousands):



2018 (remaining 9 months)	$	—
2019	—
2020	—
2021	—
2022	—
Thereafter	494,000
Total	$	494,000

Net Loss Per Share

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Net Loss Per Share

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, 2018 and 2017.

The following table sets forth the computation of basic and diluted shares (in thousands):



	Three Months Ended
	March 31, 2018	March 31, 2017
Denominator:
Weighted average common shares outstanding	49,302	49,144
Less: shares of restricted stock subject to repurchase	—	(5	)
Total common shares-basic	49,302	49,139
Effect of dilutive securities:
Options	—	—
Restricted stock awards and units	—	—
Total common shares-diluted	49,302	49,139

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, 2018 and 2017, there was no difference in the weighted average number of common shares used for the calculation of basic and diluted loss per share as the effect of all potentially dilutive shares outstanding was anti-dilutive. A total of 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 for the three months ended March 31, 2018 because including them would have been anti-dilutive. For the three months ended March 31, 2017, in the calculation of net loss per share, 0.7 million shares subject to stock options and restricted stock awards and units were excluded from the computation of diluted net income per share as they were anti-dilutive.

Stockholders' Equity

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stockholders' Equity

STOCKHOLDERS’ EQUITY

Stock Repurchase Programs

In August 2007, the Company’s Board of Directors (“the Board”) authorized a plan to repurchase the Company’s outstanding shares of common stock dependent on market conditions, share price and other factors. As of March 31, 2018, the Company has repurchased a total of approximately 11,787,000 shares of common stock, since inception of the plan, at an average price of $27.33 per share for a total cost of $322.1 million. As of December 31, 2017, the Company had repurchased a total of approximately 11,142,000 shares of common stock, since inception of the plan, at an average price of $27.57 per share for a total cost of $307.2 million. The shares repurchased are recorded as treasury stock and are accounted for under the cost method. No expiration date has been specified for this plan. As of March 31, 2018, the total remaining amount available for repurchase was $127.9 million. The Company plans to continue to execute authorized repurchases from time to time under the plan.

Stock Option Plans

The 2003 Plan

As of March 31, 2018, there were approximately 0.1 million shares reserved for future grant under the Company’s 2003 Equity Incentive Plan (the “2003 Plan”). At the 2018 annual stockholders meeting held on April 27, 2018, shareholders approved an amendment to the 2003 Plan reserving an additional 3.9 million shares for future issuance.

A summary of the stock option activity is presented below (in thousands, except per share amounts):



	Options Outstanding
	Number of Shares Subject to Options		Weighted Average Exercise Price Per Share
Balance at December 31, 2017	1,172		$24.06
Options granted	—		—
Options exercised	(45	)	$18.23
Options canceled / forfeited / expired	(35	)	$34.58
Balance at March 31, 2018	1,092		$23.97

Restricted Stock Awards and Units

Information with respect to outstanding restricted stock awards and units as of March 31, 2018 is as follows (in thousands, except per share amounts):



	Restricted Stock and Restricted Stock Units
	Number of Shares Subject to Time- based Vesting		Number of Shares Subject to Performance- based Vesting		Total Number of Shares		Weighted Average Grant Date Fair Value Per Share
Balance at December 31, 2017	2,014		1,119		3,133		$	33.35
Awards and units granted	683		—		683		$	22.37
Awards and units vested / earned	(506	)	(171	)	(677	)	$	35.62
Awards and units canceled / forfeited	(74	)	(227	)	(301	)	$	29.03
Balance at March 31, 2018	2,117		721		2,838		$	30.63

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, 2018, there were approximately 265,000 shares reserved for grant under the Company’s 2003 Employee Stock Purchase Plan (the “ESPP”) and the International Employee Stock Purchase Plan (the “International ESPP”), collectively. At the 2018 annual stockholders meeting on April 27, 2018, shareholders approved an amendment to the ESPP adding an additional 1.0 million shares to the share reserve.

Stock-Based Compensation Expense

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation Expense

STOCK-BASED COMPENSATION EXPENSE

The effect of recording stock-based compensation expense for the three months ended March 31, 2018 and 2017 is as follows (in thousands):



	Three Months Ended
	March 31, 2018			March 31, 2017
Research, development and other related costs	$	3,094		$	2,870
Selling, general and administrative	4,314			4,211
Total stock-based compensation expense	7,408			7,081
Tax effect on stock-based compensation expense	(1,256		)	(2,019		)
Net effect on net income (loss)	$	6,152		$	5,062

Stock-based compensation expense categorized by various equity components for the three months ended March 31, 2018 and 2017 is summarized in the table below (in thousands):



	Three Months Ended
	March 31, 2018		March 31, 2017
Employee stock options	$	177	$	645
Restricted stock awards and units	6,432		6,006
Employee stock purchase plan	799		430
Total stock-based compensation expense	$	7,408	$	7,081

There were no options granted in the three months ended March 31, 2018 and 2017.

ESPP grants occur in February and August. The following assumptions were used to value the ESPP shares for these grants:



	February 2018		February 2017
Expected life (years)	2.0		2.0
Risk-free interest rate	2.2	%	1.2	%
Dividend yield	3.6	%	2.0	%
Expected volatility	39.4	%	28.3	%

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES For the three months ended March 31, 2018, the Company recorded an income tax benefit of $2.6 million on a pre-tax 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 book-to-tax permanent differences, valuation allowance recorded against the Company’s unutilized tax credits generated in the current year, and shortfalls from stock-based compensation. For the three months ended March 31, 2017, the Company recorded an income tax benefit of $35.3 million on a pre-tax loss of $46.3 million which resulted in an effective tax rate of 76.2%. The effective tax rate was primarily related to losses in foreign operations, as the Company’s tax rates on those operations were generally lower than the U.S. statutory rate. 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 income tax benefit for the three months ended March 31, 2018 as compared to the income tax benefit during the same period in the prior year is largely attributable to valuation allowance recorded against the Company’s tax credits and the reduction in year-to-date losses. As of March 31, 2018, unrecognized tax benefits were $33.8 million (which is included in long-term deferred tax and other liabilities on the Condensed Consolidated Balance Sheet), of which $22.2 million would affect the effective tax rate if recognized. As of March 31, 2017, unrecognized tax benefits were $30.1 million (which was included in long-term deferred tax and other liabilities on the Condensed Consolidated Balance Sheet), of which $23.8 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, 2018 and March 31, 2017, the Company recognized an insignificant amount of interest and penalties related to unrecognized tax benefits. Accrued interest and penalties were $0.7 million and $0.6 million as of March 31, 2018 and December 31, 2017, respectively. At March 31, 2018, the Company's 2013 through 2017 tax years were open and subject to potential examination in one or more jurisdictions. In addition, in the U.S., any net operating losses or credits that were generated in prior years but not yet fully utilized in a year that is closed under the statute of limitations may also be subject to examination. The Company is currently under examination by the Internal Revenue Service for tax year 2014 and cannot estimate the financial outcome of the examination. The Company is not currently under foreign income tax examination. On December 22, 2017, the Tax Cut and Jobs Act (“Tax Act”) was signed into law. The Tax Act introduced a broad range of tax reform measures that significantly change the federal income tax laws. As of December 31, 2017, the Company recorded a provisional tax expense in the Statement of Operations of approximately $5.6 million, comprised of approximately $13.5 million tax expense from recording additional valuation allowance against federal tax credits due to certain provisions of the Tax Act, offset by approximately $7.9 million of tax benefit from the remeasurement of U.S. deferred taxes using the relevant tax rate at which the Company expects them to reverse in the future. The estimated one-time transition tax on post-1986 foreign unremitted earnings is not anticipated to have a material impact to the Company's effective tax rate. As of March 31, 2018, the Company has not recorded any adjustments to the provisional tax expense. The Company continues to monitor supplemental legislation and technical interpretations of the tax law that may cause the final impact from the Tax Act to differ from the provisionally recorded amounts. The Company expects to complete its analysis within the measurement period allowed by Staff Accounting Bulletin (“SAB”) No.118, no later than the fourth quarter of 2018.

Commitments And Contingencies	3 Months Ended
Commitments And Contingencies	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments And Contingencies	COMMITMENTS AND CONTINGENCIES Lease Commitments The Company leases office and research facilities and office equipment under operating leases which expire at various dates through 2029. Under lease agreements that contain escalating rent provisions, lease expense is recorded on a straight-line basis over the lease term. There were no material changes to our future minimum lease payments during the three months ended March 31, 2018. Rent expense for the three months ended March 31, 2018 and 2017 amounted to $1.8 million and $1.5 million, respectively. Contingencies At each reporting period, the Company evaluates whether or not a potential loss amount or a potential range of loss is probable and reasonably estimable under the provisions of the authoritative guidance that addresses accounting for contingencies. The Company is currently unable to predict the final outcome of lawsuits to which it is a party and therefore cannot determine the likelihood of loss nor estimate a range of possible loss. An adverse decision in any of these proceedings could significantly harm the Company’s business and consolidated financial position, results of operations or cash flows. Tessera, Inc. v. Toshiba Corporation, Civil Action No. 5:15-cv-02543-BLF (N.D. Cal.) On May 12, 2015, Tessera, Inc. filed a complaint against Toshiba Corporation (“Toshiba”) in California Superior Court. Tessera, Inc.’s complaint alleges causes of action for breach of contract, breach of the implied covenant of good faith and fair dealing, and declaratory relief, generally alleging that Toshiba underpaid royalties and failed to cooperate with audits conducted pursuant to the parties’ license agreement. On June 8, 2015, Toshiba removed the action to the U.S. District Court for the Northern District of California. On June 18, 2015, Toshiba filed its answer, affirmative defenses, and counterclaims to Tessera, Inc.’s complaint. Toshiba alleges counterclaims for declaratory judgment and breach of the implied warranty of good faith and fair dealing. The counterclaims seek, among other things, judicial determinations about the interpretation of the parties’ agreement, termination of the agreement, an accounting of the amount of alleged overpayments by Toshiba, restitution, and damages. On July 10, 2015, Tessera, Inc. filed its answer and affirmative defenses to Toshiba’s counterclaims. On March 17, 2016, Tessera, Inc. filed an amended complaint adding a claim for declaratory relief regarding a February 12, 2016 letter sent by Toshiba to Tessera, Inc. purporting to terminate the parties’ license agreement. On March 18, 2016, Toshiba filed its amended answer, affirmative defenses, and counterclaims. On April 4, 2016, Tessera, Inc. filed an answer to Toshiba’s amended counterclaims. An initial summary judgment hearing on contract issues took place on September 22, 2016. On November 7, 2016, the Court entered an order granting Toshiba’s motion regarding the definition of “TCC,” and denying summary judgment on the other issues raised by the parties’ cross-motions. On December 6, 2016, Tessera, Inc. filed a motion pursuant to Federal Rule of Civil Procedure 54(b) seeking authorization to appeal the order and for a stay. On March 6, 2017, the Court granted the Rule 54(b) motion. The Court subsequently vacated the trial date and stayed the remainder of the district court proceedings. On April 4, 2017, Tessera, Inc. filed a notice of appeal to the U.S. Court of Appeals for the Ninth Circuit. The parties completed briefing on November 2, 2017. A hearing for oral argument has not yet been scheduled. 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 Information

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Segment And Geographic Information

SEGMENT AND GEOGRAPHIC INFORMATION

The Company reports its financial results within two reportable segments: (1) Product Licensing and (2) Semiconductor and IP Licensing. There are certain corporate overhead costs that are not allocated to these reportable segments because these operating amounts are not considered in evaluating the operating performance of the Company’s business segments.

The Chief Executive Officer is also the Chief Operating Decision Maker (“CODM”) as defined by the authoritative guidance on segment reporting.

The Product Licensing segment, including the Company's DTS and FotoNation subsidiaries, licenses its technologies and intellectual property related to audio, digital radio and imaging solutions under the brands DTS, HD Radio and FotoNation. The Product Licensing solutions typically include the delivery of software or hardware-based solutions, combined with various other intellectual property, including know how, patents, trademarks, and copyrights. Product Licensing represents revenue derived primarily from the consumer electronics market and related applications servicing the home, automotive and mobile markets.

The Semiconductor and IP Licensing segment develops and licenses semiconductor technologies and IP to manufacturers, foundries, subcontract assemblers and others. The segment includes revenue generated from the technology and IP portfolios of Tessera, Inc., Invensas and Invensas Bonding Technologies, Inc. (formally Ziptronix, Inc.). Tessera, Inc. pioneered chip-scale packaging solutions. Invensas develops advanced semiconductor packaging and 3D interconnect solutions, including wafer bonding solutions, for applications such as smartphones, tablets, laptops, PCs, data centers and automobiles. The Company expands its technology and IP offerings in this segment through a combination of internal R&D and acquisitions. The Company also provides engineering services to customers in the form of technology demonstrations and technology transfers to assist their evaluation and adoption of the Company's technologies. Through the Company’s technology transfer service, the Company provides detailed documentation outlining design guidelines, process specifications, recommended equipment and process parameters as well as hands-on engineering support to assist its licensees in bringing up and qualifying its technologies at their facilities. This service allows licensees to readily leverage the Company’s years of experience and expertise in direct and hybrid bonding.

The Company does not identify or allocate assets by reportable segment, nor does the CODM evaluate reportable segments using discrete asset information. Reportable segments do not record inter-segment revenue and accordingly there are none to report. The Company does not allocate other income and expense to reportable segments. Although the CODM uses operating income to evaluate reportable segments, operating costs included in one segment may benefit other segments.

The following table sets forth the Company’s segment revenue, operating expenses and operating income (loss) for the three months ended March 31, 2018 and 2017 (in thousands):



	Three Months Ended,
	March 31, 2018			March 31, 2017
Revenue:
Product licensing segment	$	53,216		$	27,701
Semiconductor and IP licensing segment	12,316			39,554
Total revenue	65,532			67,255
Operating expenses:
Product licensing segment	43,891			43,182
Semiconductor and IP licensing segment	19,430			22,763
Unallocated operating expenses (1)	34,702			41,205
Total operating expenses	98,023			107,150
Operating income (loss):
Product licensing segment	9,325			(15,481		)
Semiconductor and IP licensing segment	(7,114		)	16,791
Unallocated operating expenses (1)	(34,702		)	(41,205		)
Total operating loss	$	(32,491	)	$	(39,895	)

(1) Unallocated operating expenses consist primarily of general and administrative expenses, such as administration, human resources, finance, information technology, corporation 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, 2018				March 31, 2017
Japan	$	19,345	30	%	$	13,891	21	%
Korea	14,428		22		6,887		10
China	14,145		21		3,055		4
U.S.	11,628		18		33,405		50
Taiwan	531		1		7,991		12
Other	5,455		8		2,026		3
	$	65,532	100	%	$	67,255	100	%

For the three months ended March 31, 2018 and 2017, there were one and two customers, respectively, that each accounted for 10% or more of total revenue. As of March 31, 2018 and December 31, 2017, there were one and three customers that each accounted for 10% or more of total accounts receivable, respectively.

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS On April 26, 2018, the Board declared a cash dividend of $0.20 per share of common stock, payable on June 14, 2018 for the stockholders of record at the close of business on May 24, 2018.

Summary Of Significant Accounting Policies (Policies)	3 Months Ended
Summary Of Significant Accounting Policies (Policies)	Mar. 31, 2018
Accounting Policies [Abstract]
Basis of Accounting	The accompanying interim unaudited condensed consolidated financial statements as of March 31, 2018 and 2017, 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, 2017 have been derived from the Company’s annual audited financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted in accordance with such rules and regulations. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments necessary (consisting of normal recurring adjustments) to state fairly the financial position of the Company and its results of operations and cash flows as of and for the periods presented. These financial statements should be read in conjunction with the annual audited financial statements and notes thereto as of and for the year ended December 31, 2017, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017, filed on February 23, 2018 (the “Form 10-K”).
Reclassification	Reclassification Certain reclassifications have been made to prior period balances in order to conform to the current period’s presentation.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In February 2016, the FASB issued ASU No. 2016-02, "Leases" (Topic 842) (ASU 2016-02), which generally requires companies to recognize operating and financing lease liabilities and corresponding right-of-use assets on the balance sheet. This guidance will be effective for the Company in the first quarter of 2019, and early adoption is permitted. The Company will adopt the new standard effective January 1, 2019. While the Company continues to evaluate the effect of adopting this guidance on its consolidated financial statements and related disclosures, it is expected the Company's operating leases, as disclosed in Note 13 - "Commitments and Contingencies," will be subject to the new standard. The Company will recognize right-of-use assets and operating lease liabilities on its consolidated balance sheets upon adoption, which will increase total assets and liabilities, respectively. In September 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which introduces an approach based on expected losses to estimate credit losses on certain types of financial instruments. It also modifies the impairment model for available-for-sale debt securities and provides for a simplified accounting model for purchased financial assets with credit deterioration since their origination. ASU 2016-13 is effective for the Company in the first quarter of the year ending December 31, 2020. The Company is in the process of evaluating the impact of the adoption of this new standard on its consolidated financial statements. Recently Adopted Accounting Pronouncements In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This ASU addresses the classification of certain specific cash flow issues including debt prepayment or extinguishment costs, settlement of certain debt instruments, contingent consideration payments made after a business combination, proceeds from the settlement of certain insurance claims and distributions received from equity method investees. This ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years, with early adoption permitted. The Company adopted this standard as of January 1, 2018. The adoption of this standard did not have a material impact on the Company's consolidated financial statements. In October 2016, the FASB issued ASU No. 2016-16, "Intra-Entity Transfers of Assets Other Than Inventory." This ASU requires entities to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. For public entities, this ASU is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within those annual reporting periods. The Company adopted this standard as of January 1, 2018 on a prospective basis. The adoption of this standard did not have a material impact on the Company's consolidated financial statements. In May 2017, the FASB issued ASU No. 2017-09, Compensation-Stock Compensation (Topic 718) Scope of Modification Accounting. ASU 2017-09 provides guidance about which changes to the terms or conditions of a share-based payment awarded require an entity to apply modification accounting. The standard is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The Company adopted the standard as of January 1, 2018 on a prospective basis. The adoption of this standard did not have a material impact on the Company's consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09 (Topic 606) "Revenue from Contracts with Customers." Topic 606 supersedes the revenue recognition requirements in Topic 605 “Revenue Recognition” (Topic 605), and requires entities to recognize revenue when control of goods or services is transferred to customers at an amount that reflects the consideration the entity expects to be entitled in exchange for the goods or services. Under the prior standard, licensing companies generally reported revenue from per-unit royalty based arrangements one quarter in arrears. Under the new guidance, the Company estimates per-unit royalty-based revenue prior to receiving customer royalty reports. The Company also expects the standard to have a significant impact on the timing of revenue recognition associated with its fixed fee and minimum guarantee arrangements, as a majority of such revenue which had previously been recognized over the license term is expected to be recognized at the inception of the license term. On January 1, 2018, the Company adopted the new standard using the modified retrospective method, under which the Company recorded a $224 million cumulative net of tax adjustment to the opening balance of retained earnings on January 1, 2018. The adjustment was determined by measuring the impact of the new standard on existing contracts that were not completed as of December 31, 2017. Prior period comparative information has not been restated and continues to be reported under Topic 605 in effect for those periods. The Company expects this new standard to have a material impact on its revenue and its consolidated statement of operations and balance sheet on an ongoing basis, with no impact on the timing of customer billings or on cash flows. See “Note 3 - Revenue" for further discussion.
Revenue Recognition	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 consolidated statement of operations. Contract Balances Unbilled Contracts Receivable Timing of revenue recognition may differ significantly from the timing of invoicing to customers. Accounts receivable, net, include amounts billed and currently due from customers. Unbilled contracts receivable represent 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 occurs when performance obligations are satisfied over time. Revenue Recognition The Company derives its revenue primarily from royalty and license fees for rights to use the Company’s intellectual property and technologies (“IP”). Revenue is recognized upon transfer of control of promised products, services or IP rights to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products, services or licensing of the IP rights. Certain licensees have entered into fixed fee or minimum guarantee arrangements, whereby licensees pay a fixed fee for the right to incorporate the Company's technology in the licensee's products over the license term. In arrangements with a minimum guarantee, the fixed fee component corresponds to a minimum number of units or dollars that the customer must produce or pay, with additional per-unit fees for any units or dollars exceeding the minimum. In most cases, the customer pays the fixed license fee in specified installments over the license term. For these agreements, the Company recognizes the full fixed fee as revenue at the beginning of the license term, when the licensee has the right to use the IP and begins to benefit from the license. If the contract term of a fixed fee or minimum guarantee arrangement is longer than one year, the Company also considers the scheduled payment arrangements to determine whether a significant financing component exists. In general, if the payment arrangements extend beyond the initial twelve months of the contract, the Company treats a portion of the payments as a significant financing component. When the payments are expected to be received within one year or less, the Company does not adjust the promised amount of consideration for the effects of a financing component. The discount rate used for each arrangement reflects the rate that would be used in a separate financing transaction between the Company and the licensee at contract inception, and takes into account the credit characteristics of the licensee and market interest rates as of the date of the agreement. As such, the amount of fixed fee revenue recognized at the beginning of the license term will be reduced by the calculated financing component. As payments are received from the licensee, the Company recognizes a portion of the financing component as interest income, reported as other income and expense in the 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 shipment activity takes place. The Company estimates the royalties earned each quarter based on its forecast of manufacturing and sales activity incurred by its licensees in that quarter. Any differences between actual royalties owed by a licensee and the Company’s quarterly estimate are recognized in the following quarter, when the licensee’s royalty report is received. Estimating licensees’ quarterly royalties prior to receiving the royalty reports requires the Company to make significant assumptions and judgments that could have a material impact on the amount of revenue it reports on a quarterly basis. The Company actively monitors and enforces its IP, including seeking appropriate compensation from customers that have under-reported royalties owed under a license agreement and from third parties that utilize the Company’s intellectual property without a license. As a result of these activities, the Company may, from time to time, recognize revenue from payments resulting from periodic compliance audits of licensees for underreporting royalties incurred in prior periods, as part of a settlement of a patent infringement dispute, or legal judgments from a license dispute. These recoveries and settlements may cause revenue to be higher than expected during a particular reporting period and such recoveries may not occur in subsequent periods. The Company recognizes revenue from recoveries when a binding agreement has been executed and the Company concludes collection under that agreement is likely. In some instances, the Company may enter into license agreements that contain multiple performance obligations that include engineering services in addition to a technology or software license. For such arrangements where all components are capable of being distinct and accounted for as separate performance obligations, the Company allocates revenue to each performance obligation based on its relative standalone selling price. The Company generally determines standalone selling prices based on the prices ordinarily charged to customers, or in some cases by applying a reasonable cost-plus margin. The consideration for engineering services is recognized as the underlying performance obligations are satisfied. Generally, the Company satisfies performance obligations over time and therefore recognizes revenue over time by measuring the progress toward completion of the performance obligation at each reporting period. Revenue is recognized gross of withholding taxes that are remitted directly by the Company's licensees directly to a local tax authority.

Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Schedule of Impact of Adoption

The cumulative effect of the changes made to the Company's condensed consolidated balance sheet for the adoption of Topic 606 was as follows (in thousands):



BALANCE SHEET	Balance at December 31, 2017		Adjustments due to Topic 606			Balance at January 1, 2018
Assets
Unbilled contracts receivable	$	10,866	$	188,760		$	199,626
Other current assets	16,949		(2,000		)	14,949
Long-term unbilled contracts receivable	2,930		105,193			108,123
Other assets	9,772		(3,656		)	6,116
Liabilities
Accrued liabilities	47,969		432			48,401
Deferred revenue	2,686		(783		)	1,903
Long-term deferred tax liabilities	15,085		64,520			79,605

Equity
Retained earnings	68,556		224,128			292,684

Revenue (Tables)

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Schedule of Revenue Recognized in Period

The following table presents additional revenue and contract disclosures (in thousands):



	Three months ended March 31,
	2018		2017
Revenue recognized in the period from:
Amounts included in deferred revenue at the beginning of the period	$	353	$	236
Performance obligations satisfied in previous periods (true ups or settlements)	—		—

Schedule of Remaining Performance Obligations

(in thousands):



	As of
	March 31, 2018		December 31, 2017
Revenue from contracts with performance obligations expected to be satisfied in:
One year or less	$	4,442	$	2,440
More than one year but less than two years	175		149
More than two years	274		240
Total	$	4,891	$	2,829

Composition Of Certain Financial Statement Captions (Tables)

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Other Current Assets

Other current assets consisted of the following (in thousands):



	March 31, 2018		December 31, 2017
Prepaid income taxes	$	6,609	$	6,713
Prepaid expenses	7,009		6,655
Other	3,746		3,581
	$	17,364	$	16,949

Property, Plant and Equipment

Property and equipment, net consisted of the following (in thousands):



	March 31, 2018			December 31, 2017
Equipment, furniture and other	$	26,735		$	26,029
Building and improvements	18,222			18,222
Land	5,300			5,300
Leasehold improvements	6,437			6,469
	56,694			56,020
Less: accumulated depreciation and amortization	(23,271		)	(21,578		)
	$	33,423		$	34,442

Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):



	March 31, 2018		December 31, 2017
Employee compensation and benefits	$	21,093	$	37,056
Other	9,692		10,913
	$	30,785	$	47,969

Accumulated Other Comprehensive Income (Loss)

Accumulated other comprehensive loss consisted of the following (in thousands):



	March 31, 2018			December 31, 2017
Unrealized loss on available-for-sale securities, net of tax	$	(520	)	$	(303	)
	$	(520	)	$	(303	)

Other Income and Expense, Net

Other income and expense, net, consisted of the following (in thousands):



	For the three months ended,
	March 31, 2018		March 31, 2017
Interest income from significant financing components under Topic 606	$	2,151	$	—
Interest income from investments	250		213
Other income (losses)	753		(167		)
	$	3,154	$	46

Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Summary of Marketable Securities

The following is a summary of marketable securities at March 31, 2018 and December 31, 2017 (in thousands):



	March 31, 2018
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Values
Available-for-sale securities
Corporate bonds and notes	$	37,945	$	—	$	(441	)	$	37,504
Commercial paper	2,399		—		—			2,399
Treasury and agency notes and bills	6,000		—		(79		)	5,921
Money market funds	2,124		—		—			2,124
Total available-for-sale securities	$	48,468	$	—	$	(520	)	$	47,948
Reported in:
Cash and cash equivalents								$	2,124
Short-term investments								45,824
Total marketable securities								$	47,948



	December 31, 2017
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Values
Available-for-sale securities
Corporate bonds and notes	$	45,803	$	—	$	(230	)	$	45,573
Commercial paper	2,392		—		(2		)	2,390
Treasury and agency notes and bills	6,000		—		(71		)	5,929
Certificates of deposit	8,540		—		—			8,540
Money market funds	40,413		—		—			40,413
Total available-for-sale securities	$	103,148	$	—	$	(303	)	$	102,845
Reported in:
Cash and cash equivalents								$	40,413
Short-term investments								62,432
Total marketable securities								$	102,845

Schedule of Gross Unrealized Losses on Investments



March 31, 2018	Less Than 12 Months					12 Months or More					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Corporate bonds and notes	$	30,557	$	(401	)	$	6,947	$	(40	)	$	37,504	$	(441	)
Treasury and agency notes and bills	—		—			5,921		(79		)	5,921		(79		)
Total	$	30,557	$	(401	)	$	12,868	$	(119	)	$	43,425	$	(520	)



December 31, 2017	Less Than 12 Months					12 Months or More					Total
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Corporate bonds and notes	$	30,811	$	(189	)	$	14,762	$	(41	)	$	45,573	$	(230	)
Commercial paper	2,390		(2		)	—		—			2,390		(2		)
Treasury and agency notes and bills	—		—			5,929		(71		)	5,929		(71		)
Total	$	33,201	$	(191	)	$	20,691	$	(112	)	$	53,892	$	(303	)

Estimated Fair Value of Marketable Securities by Contractual Maturity



	Estimated Fair Value
Due in one year or less	$	19,224
Due in one to two years	19,070
Due in two to three years	9,654
Total	$	47,948

Fair Value (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis



	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 (1)	$	40,413	$	40,413	$	—	$	—
Certificates of deposit (2)	8,540		—		8,540		—
Corporate bonds and notes (2)	45,573		—		45,573		—
Treasury and agency notes and bills (2)	5,929		—		5,929		—
Commercial paper (2)	2,390		—		2,390		—
Total Assets	$	102,845	$	40,413	$	62,432	$	—

The following footnotes indicate where the noted items were recorded in the Consolidated Balance Sheet at December 31, 2017:


(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 March 31, 2018 (in thousands):



	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Marketable securities
Money market funds (1)	$	2,124	$	2,124	$	—	$	—
Corporate bonds and notes (2)	37,504		—		37,504		—
Treasury and agency notes and bills (2)	5,921		—		5,921		—
Commercial paper (2)	2,399		—		2,399		—
Total Assets	$	47,948	$	2,124	$	45,824	$	—

The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at March 31, 2018:


(1)	Reported as cash and cash equivalents.


(2)	Reported as short-term investments.

Goodwill And Identified Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Identified Intangible Assets

Identified intangible assets consisted of the following (in thousands):



		March 31, 2018							December 31, 2017
	Average Life (Years)	Gross Assets		Accumulated Amortization			Net		Gross Assets		Accumulated Amortization			Net
Acquired patents / core technology	3-15	$	142,584	$	(117,314	)	$	25,270	$	142,584	$	(113,349	)	$	29,235
Existing technology	5-10	204,394		(70,085		)	134,309		204,394		(61,518		)	142,876
Customer contracts and related relationships	3-9	291,769		(81,658		)	210,111		291,769		(68,267		)	223,502
Trademarks/trade name	4-10	40,083		(7,354		)	32,729		40,083		(6,111		)	33,972
Non-competition agreements	1	2,231		(2,231		)	—		2,231		(2,231		)	—
Total amortizable intangible assets		681,061		(278,642		)	402,419		681,061		(251,476		)	429,585
In-process research and development		2,204		—			2,204		2,204		—			2,204
Total intangible assets		$	683,265	$	(278,642	)	$	404,623	$	683,265	$	(251,476	)	$	431,789

Estimated Future Amortization Expense

As of March 31, 2018, the estimated future amortization expense of total (amortizable) intangible assets was as follows (in thousands):



2018 (remaining 9 months)	$	80,775
2019	98,855
2020	87,140
2021	79,478
2022	31,173
Thereafter	24,998
	$	402,419

Debt (Tables)

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Schedule of Maturities of Long-term Debt

As of March 31, 2018, future minimum principal payments for long-term debt are summarized as follows (in thousands):



2018 (remaining 9 months)	$	—
2019	—
2020	—
2021	—
2022	—
Thereafter	494,000
Total	$	494,000

Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Loss Per Share

The following table sets forth the computation of basic and diluted shares (in thousands):



	Three Months Ended
	March 31, 2018	March 31, 2017
Denominator:
Weighted average common shares outstanding	49,302	49,144
Less: shares of restricted stock subject to repurchase	—	(5	)
Total common shares-basic	49,302	49,139
Effect of dilutive securities:
Options	—	—
Restricted stock awards and units	—	—
Total common shares-diluted	49,302	49,139

Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Stock Option Activity

A summary of the stock option activity is presented below (in thousands, except per share amounts):



	Options Outstanding
	Number of Shares Subject to Options		Weighted Average Exercise Price Per Share
Balance at December 31, 2017	1,172		$24.06
Options granted	—		—
Options exercised	(45	)	$18.23
Options canceled / forfeited / expired	(35	)	$34.58
Balance at March 31, 2018	1,092		$23.97

Summary of Restricted Stock Awards and Units

Information with respect to outstanding restricted stock awards and units as of March 31, 2018 is as follows (in thousands, except per share amounts):



	Restricted Stock and Restricted Stock Units
	Number of Shares Subject to Time- based Vesting		Number of Shares Subject to Performance- based Vesting		Total Number of Shares		Weighted Average Grant Date Fair Value Per Share
Balance at December 31, 2017	2,014		1,119		3,133		$	33.35
Awards and units granted	683		—		683		$	22.37
Awards and units vested / earned	(506	)	(171	)	(677	)	$	35.62
Awards and units canceled / forfeited	(74	)	(227	)	(301	)	$	29.03
Balance at March 31, 2018	2,117		721		2,838		$	30.63

Stock-Based Compensation Expense (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Effect of Recording Stock-Based Compensation Expense

The effect of recording stock-based compensation expense for the three months ended March 31, 2018 and 2017 is as follows (in thousands):



	Three Months Ended
	March 31, 2018			March 31, 2017
Research, development and other related costs	$	3,094		$	2,870
Selling, general and administrative	4,314			4,211
Total stock-based compensation expense	7,408			7,081
Tax effect on stock-based compensation expense	(1,256		)	(2,019		)
Net effect on net income (loss)	$	6,152		$	5,062

Stock-Based Compensation Expense Categorized by Equity Components

Stock-based compensation expense categorized by various equity components for the three months ended March 31, 2018 and 2017 is summarized in the table below (in thousands):



	Three Months Ended
	March 31, 2018		March 31, 2017
Employee stock options	$	177	$	645
Restricted stock awards and units	6,432		6,006
Employee stock purchase plan	799		430
Total stock-based compensation expense	$	7,408	$	7,081

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 2018		February 2017
Expected life (years)	2.0		2.0
Risk-free interest rate	2.2	%	1.2	%
Dividend yield	3.6	%	2.0	%
Expected volatility	39.4	%	28.3	%

Segment And Geographic Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

The following table sets forth the Company’s segment revenue, operating expenses and operating income (loss) for the three months ended March 31, 2018 and 2017 (in thousands):



	Three Months Ended,
	March 31, 2018			March 31, 2017
Revenue:
Product licensing segment	$	53,216		$	27,701
Semiconductor and IP licensing segment	12,316			39,554
Total revenue	65,532			67,255
Operating expenses:
Product licensing segment	43,891			43,182
Semiconductor and IP licensing segment	19,430			22,763
Unallocated operating expenses (1)	34,702			41,205
Total operating expenses	98,023			107,150
Operating income (loss):
Product licensing segment	9,325			(15,481		)
Semiconductor and IP licensing segment	(7,114		)	16,791
Unallocated operating expenses (1)	(34,702		)	(41,205		)
Total operating loss	$	(32,491	)	$	(39,895	)

Schedule of Geographic Revenue Information

The table below lists the geographic revenue for the periods indicated (in thousands):



	Three Months Ended,
	March 31, 2018				March 31, 2017
Japan	$	19,345	30	%	$	13,891	21	%
Korea	14,428		22		6,887		10
China	14,145		21		3,055		4
U.S.	11,628		18		33,405		50
Taiwan	531		1		7,991		12
Other	5,455		8		2,026		3
	$	65,532	100	%	$	67,255	100	%

The Company And Basis Of Presentation - Narrative (Details)	3 Months Ended
	Mar. 31, 2018 semiconductor_chip customer
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Percentage of smartphones embedded with Company's imaging technology (more than)	25.00%
Number of customers with licenses (more than) \| customer	100
Number of semiconductor chips \| semiconductor_chip	100,000,000,000

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

Summary Of Significant Accounting Policies - Schedule of Cumulative Impact of Adoption (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Assets
Accounts receivable, net	$ 23,107	$ 199,626	$ 17,010
Unbilled contracts receivable	204,765		10,866
Other current assets	17,364	14,949	16,949
Long-term unbilled contracts receivable	71,331	108,123	2,930
Other assets	5,383	6,116	9,772
Liabilities
Accrued liabilities	30,785	48,401	47,969
Deferred revenue	4,597	1,903	2,686
Long-term deferred tax liabilities	72,564	79,605	15,085
Equity
Retained earnings	249,781	292,684	68,556
Calculated under Revenue Guidance in Effect before Topic 606
Assets
Accounts receivable, net			10,866
Unbilled contracts receivable	10,340
Other current assets	19,114		16,949
Long-term unbilled contracts receivable	2,488		2,930
Other assets	7,571		9,772
Liabilities
Accrued liabilities	30,687		47,969
Deferred revenue	5,636		2,686
Long-term deferred tax liabilities	12,610		15,085
Equity
Retained earnings	49,464		$ 68,556
Difference between Revenue Guidance in Effect before and after Topic 606 \| Accounting Standards Update 2014-09
Assets
Accounts receivable, net		188,760
Unbilled contracts receivable	194,425
Other current assets	(1,750)	(2,000)
Long-term unbilled contracts receivable	68,843	105,193
Other assets	(2,188)	(3,656)
Liabilities
Accrued liabilities	98	432
Deferred revenue	(1,039)	(783)
Long-term deferred tax liabilities	59,954	64,520
Equity
Retained earnings	$ 200,317	$ 224,128

Summary Of Significant Accounting Policies - Schedule of Impact of Adoption on Condensed Consolidated Financial Statements (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Jan. 01, 2018	Dec. 31, 2017
STATEMENT OF OPERATIONS
Royalty and license fees	$ 65,532	$ 67,255
Cost of revenue	2,324	1,400
Operating loss	(32,491)	(39,895)
Other income and expense, net	3,154	46
Loss before taxes	(35,655)	(46,308)
Provision for (benefit from) income taxes	(2,638)	(35,279)
Net loss	$ (33,017)	$ (11,029)
Basic/Diluted net loss per share:
Basic/Diluted net loss per share (in dollars per share)	$ (0.67)
Assets
Unbilled contracts receivable	$ 204,765			$ 10,866
Other current assets	17,364		$ 14,949	16,949
Long-term unbilled contracts receivable	71,331		108,123	2,930
Other assets	5,383		6,116	9,772
Liabilities
Accrued liabilities	30,785		48,401	47,969
Deferred revenue	4,597		1,903	2,686
Long-term deferred tax liabilities	72,564		79,605	15,085
Equity
Retained earnings	249,781		292,684	68,556
Calculated under Revenue Guidance in Effect before Topic 606
STATEMENT OF OPERATIONS
Royalty and license fees	96,160
Cost of revenue	2,099
Operating loss	(1,638)
Other income and expense, net	1,003
Loss before taxes	(6,953)
Provision for (benefit from) income taxes	2,250
Net loss	$ (9,203)
Basic/Diluted net loss per share:
Basic/Diluted net loss per share (in dollars per share)	$ (0.19)
Assets
Unbilled contracts receivable	$ 10,340
Other current assets	19,114			16,949
Long-term unbilled contracts receivable	2,488			2,930
Other assets	7,571			9,772
Liabilities
Accrued liabilities	30,687			47,969
Deferred revenue	5,636			2,686
Long-term deferred tax liabilities	12,610			15,085
Equity
Retained earnings	49,464			$ 68,556
Difference between Revenue Guidance in Effect before and after Topic 606 \| Accounting Standards Update 2014-09
STATEMENT OF OPERATIONS
Royalty and license fees	(30,628)
Cost of revenue	225
Operating loss	(30,853)
Other income and expense, net	2,151
Loss before taxes	(28,702)
Provision for (benefit from) income taxes	(4,888)
Net loss	$ (23,814)
Basic/Diluted net loss per share:
Basic/Diluted net loss per share (in dollars per share)	$ (0.48)
Assets
Unbilled contracts receivable	$ 194,425
Other current assets	(1,750)		(2,000)
Long-term unbilled contracts receivable	68,843		105,193
Other assets	(2,188)		(3,656)
Liabilities
Accrued liabilities	98		432
Deferred revenue	(1,039)		(783)
Long-term deferred tax liabilities	59,954		64,520
Equity
Retained earnings	$ 200,317		$ 224,128

Revenue - Revenue Recognized in Period (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue from Contract with Customer [Abstract]
Amounts included in deferred revenue at the beginning of the period	$ 353	$ 236
Performance obligations satisfied in previous periods (true ups or settlements)	$ 0	$ 0

Revenue - Performance Obligations (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Contract with Customer, Duration [Axis]: 2018-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations		$ 2,440
Performance obligations expected to be satisfied, expected timing		1 year
Contract with Customer, Duration [Axis]: 2018-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 4,442
Performance obligations expected to be satisfied, expected timing	1 year
Contract with Customer, Duration [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations		$ 149
Performance obligations expected to be satisfied, expected timing		1 year
Contract with Customer, Duration [Axis]: 2019-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 175
Performance obligations expected to be satisfied, expected timing	1 year
Contract with Customer, Duration [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied, expected timing
Contract with Customer, Duration [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations		$ 240
Contract with Customer, Duration [Axis]: 2021-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 274
Contract with Customer, Duration [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 4,891	$ 2,829

Composition Of Certain Financial Statement Captions - Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid income taxes	$ 6,609		$ 6,713
Prepaid expenses	7,009		6,655
Other	3,746		3,581
Other current assets, total	$ 17,364	$ 14,949	$ 16,949

Composition Of Certain Financial Statement Captions - Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 56,694		$ 56,020
Less: accumulated depreciation and amortization	(23,271)		(21,578)
Property and equipment, net	33,423		34,442
Depreciation and amortization of property and equipment	1,800	$ 1,800
Equipment, furniture and other
Property, Plant and Equipment [Line Items]
Property and equipment, gross	26,735		26,029
Building and improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	18,222		18,222
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	$ 6,437		$ 6,469

Composition Of Certain Financial Statement Captions - Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Employee compensation and benefits	$ 21,093		$ 37,056
Other	9,692		10,913
Accrued liabilities, total	$ 30,785	$ 48,401	$ 47,969

Composition Of Certain Financial Statement Captions - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Unrealized loss on available-for-sale securities, net of tax	$ (520)	$ (303)
Accumulated other comprehensive income (loss)	$ (520)	$ (303)

Composition Of Certain Financial Statement Captions Composition Of Certain Financial Statement Captions - Other Income and Expense, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Interest income from investments	$ 250	$ 213
Other income (losses)	753	(167)
Other income and expense, net	3,154	46
Financing
Disaggregation of Revenue [Line Items]
Interest income from significant financing components under Topic 606	$ 2,151	$ 0

Financial Instruments - Summary of Marketable Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Cost	$ 48,468	$ 103,148
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(520)	(303)
Estimated Fair Values	47,948	102,845
Corporate bonds and notes
Schedule of Available-for-sale Securities [Line Items]
Cost	37,945	45,803
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(441)	(230)
Estimated Fair Values	37,504	45,573
Commercial paper
Schedule of Available-for-sale Securities [Line Items]
Cost	2,399	2,392
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(2)
Estimated Fair Values	2,399	2,390
Treasury and agency notes and bills
Schedule of Available-for-sale Securities [Line Items]
Cost	6,000	6,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(79)	(71)
Estimated Fair Values	5,921	5,929
Certificates of deposit
Schedule of Available-for-sale Securities [Line Items]
Cost		8,540
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Estimated Fair Values		8,540
Money market funds
Schedule of Available-for-sale Securities [Line Items]
Cost	2,124	40,413
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Values	2,124	40,413
Cash and cash equivalents
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Values	2,124	40,413
Short-term investments
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Values	$ 45,824	$ 62,432

Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Schedule of Investments [Line Items]
Cash, cash equivalents and short-term investments	$ 80.8	$ 200.7
Unrealized loss, net	0.5	0.3
Operating Accounts
Schedule of Investments [Line Items]
Cash, cash equivalents and short-term investments	$ 32.8	$ 97.8

Financial Instruments - Fair Value and Gross Unrealized Losses Related to Individual Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 30,557	$ 33,201
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(401)	(191)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	12,868	20,691
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(119)	(112)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	43,425	53,892
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(520)	(303)
Corporate bonds and notes
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	30,557	30,811
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(401)	(189)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	6,947	14,762
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(40)	(41)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	37,504	45,573
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(441)	(230)
Commercial paper
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value		2,390
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses		(2)
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		2,390
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses		(2)
Treasury and agency notes and bills
Schedule of Available-for-sale Securities [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	5,921	5,929
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(79)	(71)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	5,921	5,929
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	$ (79)	$ (71)

Financial Instruments - Estimated Fair Value of Marketable Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Due in one year or less	$ 19,224
Due in one to two years	19,070
Due in two to three years	9,654
Total	$ 47,948	$ 102,845

Goodwill And Identified Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Goodwill [Roll Forward]
Goodwill	$ 385,574	$ 385,574
Product Licensing Segment
Goodwill [Roll Forward]
Goodwill	377,900	377,900
Semiconductor and IP Licensing Segment
Goodwill [Roll Forward]
Goodwill	$ 7,700	$ 7,700

Goodwill And Identified Intangible Assets - Identified Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 681,061		$ 681,061
Accumulated Amortization	(278,642)		(251,476)
Net	402,419		429,585
Intangible assets, gross	683,265		683,265
Intangible assets, net	404,623		431,789
Amortization expense	27,166	$ 28,555
In-process research and development (IPR&D)
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	2,204		2,204
Acquired patents / core technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	142,584		142,584
Accumulated Amortization	(117,314)		(113,349)
Net	$ 25,270		29,235
Acquired patents / core technology \| Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	3 years
Acquired patents / core technology \| Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	15 years
Existing technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 204,394		204,394
Accumulated Amortization	(70,085)		(61,518)
Net	$ 134,309		142,876
Existing technology \| Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	5 years
Existing technology \| Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	10 years
Customer contracts and related relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 291,769		291,769
Accumulated Amortization	(81,658)		(68,267)
Net	$ 210,111		223,502
Customer contracts and related relationships \| Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	3 years
Customer contracts and related relationships \| Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	9 years
Trademarks/trade name
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 40,083		40,083
Accumulated Amortization	(7,354)		(6,111)
Net	$ 32,729		33,972
Trademarks/trade name \| Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	4 years
Trademarks/trade name \| Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	10 years
Non-competition agreements
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	1 year
Finite-lived intangible assets, gross	$ 2,231		2,231
Accumulated Amortization	(2,231)		(2,231)
Net	$ 0		$ 0

Goodwill And Identified Intangible Assets - Estimated Future Amortization Expense of Intangible Assets, Excluding the In-Process Research and Development (Detail) $ in Thousands	Mar. 31, 2018 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2018 (remaining 9 months)	$ 80,775
2019	98,855
2020	87,140
2021	79,478
2022	31,173
Thereafter	24,998
Finite-lived intangible assets, net	$ 402,419

Debt Narrative (Details) - USD ($)			3 Months Ended
Debt Narrative (Details) - USD ($)	Jan. 23, 2018	Dec. 01, 2016	Mar. 31, 2018	Mar. 31, 2017
Line of Credit Facility [Line Items]
Borrowings			$ 494,000,000
Term B Loan Facility
Line of Credit Facility [Line Items]
Repayment of debt			1,500,000
Term B Loan Facility \| Line of Credit
Line of Credit Facility [Line Items]
Borrowing capacity	$ 494,000,000.0
Debt instrument, maturity date		Nov. 30, 2023
Borrowings		$ 600,000,000	$ 494,000,000
Voluntary prepayment against the term loan	$ 100,000,000
Debt instrument, prepayment premium	1.00%
Third party costs incurred and expensed	$ 1,100,000
Interest rate			5.10%
Unamortized debt issuance costs			$ 13,700,000
Interest expense			6,300,000	$ 6,500,000
Amortization of debt issuance costs			$ 700,000	$ 600,000
Term B Loan Facility \| Line of Credit \| Eurodollar
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	2.50%
Term B Loan Facility \| Line of Credit \| Base Rate
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	1.50%
Term B Loan Facility \| Line of Credit \| Royal Bank of Canada
Line of Credit Facility [Line Items]
Borrowing capacity		$ 600,000,000
Loan facility, term		7 years

Debt Expected Future Principal Payments (Details) $ in Thousands	Mar. 31, 2018 USD ($)
Debt Disclosure [Abstract]
2018 (remaining 9 months)	$ 0
2019	0
2020	0
2021	0
2022	0
Thereafter	494,000
Total	$ 494,000

Net Loss Per Share - Schedule of Basic and Diluted Net Loss Per Share (Detail) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Denominator:
Weighted average common shares outstanding (in shares)	49,302	49,144
Less: Unvested common shares subject to repurchase (in shares)	0	(5)
Total common shares-basic (in shares)	49,302	49,139
Effect of dilutive securities:
Stock awards (in shares)	0	0
Restricted stock awards and units (in shares)	0	0
Total common shares-diluted (in shares)	49,302	49,139

Net Loss Per Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Shares of common stock excluded from the computation of net loss per share	3.1	0.7

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended	125 Months Ended	128 Months Ended
	Apr. 27, 2018	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
Schedule of Trading Securities and Other Trading Assets [Line Items]
Treasury stock, total repurchase during period (in shares)			11,142,000	11,787,000
Treasury stock, average price of share repurchased (in dollars per share)			$ 27.57	$ 27.33
Treasury stock, total cost of repurchased stock			$ 307.2	$ 322.1
Stock repurchase program, remaining amount available for repurchase		$ 127.9		$ 127.9
Performance Shares \| Minimum
Schedule of Trading Securities and Other Trading Assets [Line Items]
Performance awards, percentage of grant available to vest		0.00%
Performance Shares \| Maximum
Schedule of Trading Securities and Other Trading Assets [Line Items]
Performance awards, percentage of grant available to vest		100.00%
Employee Stock Purchase Plan
Schedule of Trading Securities and Other Trading Assets [Line Items]
Shares reserved for grant (in shares)		265,000		265,000
Employee Stock Purchase Plan \| Subsequent Event
Schedule of Trading Securities and Other Trading Assets [Line Items]
Additional shares reserved for grant (in shares)	1,000,000.0
2003 Plan \| Employee Stock Option
Schedule of Trading Securities and Other Trading Assets [Line Items]
Shares reserved for grant (in shares)		100,000		100,000
2003 Plan \| Employee Stock Option \| Subsequent Event
Schedule of Trading Securities and Other Trading Assets [Line Items]
Additional shares reserved for grant (in shares)	3,900,000

Stockholders' Equity - Summary of Stock Option Activity (Detail) - $ / shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Number of Shares Subject to Options
Number of Shares, Beginning balance (shares)	1,172,000
Number of Shares, Options granted (shares)	0	0
Number of Shares, Options exercised (shares)	(45,000)
Number of Shares, Options cancelled / forfeited / expired (shares)	(35,000)
Number of Shares, Ending balance (shares)	1,092,000
Weighted Average Exercise Price Per Share
Weighted Average Exercise Price Per Share, Beginning balance (usd per share)	$ 24.06
Weighted Average Exercise Price Per Share, Options granted (usd per share)	0.00
Weighted Average Exercise Price Per Share, Options exercised (usd per share)	18.23
Weighted Average Exercise Price Per Share, Options cancelled / forfeited / expired (usd per share)	34.58
Weighted Average Exercise Price Per Share, Ending balance (usd per share)	$ 23.97

Stockholders' Equity - Summary of Restricted Stock Awards and Units (Detail) - Restricted Stock shares in Thousands	3 Months Ended
	Mar. 31, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted stock awards and units, beginning balance (shares)	3,133
Restricted stock awards and units, granted (shares)	683
Restricted stock awards and units, vested / earned (shares)	(677)
Restricted stock awards and units, cancelled / forfeited (shares)	(301)
Restricted stock awards and units, ending balance (shares)	2,838
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant date fair value per share of restricted stock and units, beginning balance (usd per share) \| $ / shares	$ 33.35
Weighted average grant date fair value per share of restricted stock and units, granted (usd per share) \| $ / shares	22.37
Weighted average grant date fair value per share of restricted stock and units, vested / earned (usd per share) \| $ / shares	35.62
Weighted average grant date fair value of restricted stock and units, cancelled / forfeited (usd per share) \| $ / shares	29.03
Weighted average grant date fair value per share of restricted stock and units, ending balance (usd per share) \| $ / shares	$ 30.63
Number Of Shares Subject To Time-Based Vesting
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted stock awards and units, beginning balance (shares)	2,014
Restricted stock awards and units, granted (shares)	683
Restricted stock awards and units, vested / earned (shares)	(506)
Restricted stock awards and units, cancelled / forfeited (shares)	(74)
Restricted stock awards and units, ending balance (shares)	2,117
Number Of Shares Subject To Performance-Based Vesting
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted stock awards and units, beginning balance (shares)	1,119
Restricted stock awards and units, granted (shares)	0
Restricted stock awards and units, vested / earned (shares)	(171)
Restricted stock awards and units, cancelled / forfeited (shares)	(227)
Restricted stock awards and units, ending balance (shares)	721

Stock-Based Compensation Expense - Effect of Recording Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 7,408	$ 7,081
Tax effect on stock-based compensation expense	(1,256)	(2,019)
Net effect on net income (loss)	6,152	5,062
Research, Development and Other Related Costs
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	3,094	2,870
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 4,314	$ 4,211

Stock-Based Compensation Expense - Categorized by Equity Components (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 7,408	$ 7,081
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	177	645
Restricted Stock Awards And Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	6,432	6,006
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 799	$ 430

Stock-Based Compensation Expense - Schedule of Assumptions Used to Value Options Granted (Detail) - shares	1 Months Ended		3 Months Ended
	Feb. 28, 2018	Feb. 28, 2017	Mar. 31, 2018	Mar. 31, 2017
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	2.20%	1.20%
Dividend yield	3.60%	2.00%
Expected volatility	39.40%	28.30%

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Tax Contingency [Line Items]
Benefit from income taxes	$ (2,638)	$ (35,279)
Loss before taxes	$ (35,655)	$ (46,308)
Effective tax rate (percent)	7.40%	76.20%
Unrecognized tax benefits	$ 33,800	$ 30,100
Unrecognized tax benefits that would impact the effective income tax rate	22,200	$ 23,800
Interest and penalties related to unrecognized tax benefits	$ 700		$ 600
Provisional tax expense			5,600
Remeasurement of U.S. deferred taxes			13,500
Federal Tax Credits and Remeasurement
Income Tax Contingency [Line Items]
Remeasurement of U.S. deferred taxes			$ 7,900

Commitments And Contingencies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Rent under operating lease agreement	$ 1.8	$ 1.5

Segment And Geographic Information Schedule of Operating Income (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) segment	Mar. 31, 2017 USD ($)
Segment Reporting [Abstract]
Number of reportable segments \| segment	2
Segment Reporting Information [Line Items]
Total revenue	$ 65,532	$ 67,255
Total operating expenses	98,023	107,150
Operating loss	(32,491)	(39,895)
Operating Segments \| Product Licensing Segment
Segment Reporting Information [Line Items]
Total revenue	53,216	27,701
Total operating expenses	43,891	43,182
Operating loss	9,325	(15,481)
Operating Segments \| Semiconductor and IP Licensing Segment
Segment Reporting Information [Line Items]
Total revenue	12,316	39,554
Total operating expenses	19,430	22,763
Operating loss	(7,114)	16,791
Segment Reconciling Items
Segment Reporting Information [Line Items]
Total operating expenses	34,702	41,205
Operating loss	$ (34,702)	$ (41,205)

Segment And Geographic Information - Schedule of Geographic Revenue Information (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 65,532	$ 67,255
Concentration risk, percentage (or more)	100.00%	100.00%
Customer One \| Total Revenue \| Customer Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	10.00%	10.00%
Customer One \| Total Accounts Receivable \| Customer Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)	10.00%		10.00%
Customer Two \| Total Revenue \| Customer Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)		10.00%
Customer Two \| Total Accounts Receivable \| Customer Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)			10.00%
Customer Three \| Total Accounts Receivable \| Customer Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage (or more)			10.00%
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 19,345	$ 13,891
Concentration risk, percentage (or more)	30.00%	21.00%
Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 14,428	$ 6,887
Concentration risk, percentage (or more)	22.00%	10.00%
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 14,145	$ 3,055
Concentration risk, percentage (or more)	21.00%	4.00%
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 11,628	$ 33,405
Concentration risk, percentage (or more)	18.00%	50.00%
Taiwan
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 531	$ 7,991
Concentration risk, percentage (or more)	1.00%	12.00%
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 5,455	$ 2,026
Concentration risk, percentage (or more)	8.00%	3.00%

Subsequent Event - Additional Information (Detail) - $ / shares		3 Months Ended
	Apr. 26, 2018	Mar. 31, 2018	Mar. 31, 2017
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

Fair Value - Assets Required to be Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 47,948	$ 102,845
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	2,124	40,413
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	45,824	62,432
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	2,124	40,413
Money market funds \| 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	2,124	40,413
Money market funds \| 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 \| Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		8,540
Certificates of deposit \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		0
Certificates of deposit \| Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		8,540
Certificates of deposit \| Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value		0
Corporate bonds and notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	37,504	45,573
Corporate bonds and notes \| 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 \| Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	37,504	45,573
Corporate bonds and notes \| 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
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	5,921	5,929
Treasury and agency notes and bills \| 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 \| Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	5,921	5,929
Treasury and agency notes and bills \| Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	2,399	2,390
Commercial paper \| 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 \| Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	2,399	2,390
Commercial paper \| Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 0	$ 0