Tessera (TSRA) 10-Q 2 May 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 22, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	TESSERA TECHNOLOGIES INC
Trading Symbol	TSRA
Entity Central Index Key	1,261,694
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		49,010,159

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 33,435	$ 22,599
Short-term investments	330,012	359,145
Accounts receivable, net	3,243	1,784
Other current assets	26,142	28,130
Total current assets	392,832	411,658
Intangible assets, net	89,067	95,089
Deferred tax assets	12,697	15,649
Other assets	18,441	16,956
Total assets	513,037	539,352
Current liabilities:
Accounts payable	845	1,090
Accrued legal fees	6,163	2,621
Accrued liabilities	7,021	10,262
Deferred revenue	3,685	6,805
Total current liabilities	17,714	20,778
Long-term deferred tax and other liabilities	$ 3,256	$ 3,417
Commitments and contingencies (Note 11)
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; 58,973 and 58,692 shares issued, respectively, and 49,266 and 50,294 shares outstanding, respectively	59	58
Additional paid-in capital	604,704	599,186
Treasury stock at cost: 9,707 and 8,398 shares of common stock at each period end, respectively	(267,689)	(229,513)
Accumulated other comprehensive income (loss)	26	(1,437)
Retained earnings	154,967	146,863
Total stockholders’ equity	492,067	515,157
Total liabilities and stockholders’ equity	$ 513,037	$ 539,352

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	58,973,000	58,692,000
Common stock, shares outstanding	49,266,000	50,294,000
Treasury stock, shares	9,707,000	8,398,000

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues:
Royalty and license fees	$ 59,977	$ 79,850
Total revenues	59,977	79,850
Operating expenses:
Cost of revenues	87	142
Research, development and other related costs	10,069	7,368
Selling, general and administrative	11,094	10,996
Amortization expense	6,022	4,696
Litigation expense	6,550	4,504
Total operating expenses	33,822	27,706
Operating income	26,155	52,144
Other income and expense, net	807	647
Income before taxes from continuing operations	26,962	52,791
Provision for income taxes	8,872	17,224
Income from continuing operations	18,090	35,567
Income from discontinued operations, net of tax	0	28
Net income	$ 18,090	$ 35,595
Income per share:
Basic (in dollars per share)	$ 0.36	$ 0.68
Diluted (in dollars per share)	0.36	0.66
Income from discontinued operations:
Basic (in dollars per share)	0	0
Diluted (in dollars per share)	0	0
Net income:
Basic (in dollars per share)	0.36	0.68
Diluted (in dollars per share)	0.36	0.66
Cash dividends declared per share (in dollars per share)	$ 0.20	$ 0.20
Weighted average number of shares used in per share calculations-basic	49,998	52,559
Weighted average number of shares used in per share calculations-diluted	50,566	53,534

Condensed Consolidated Stateme5

Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 18,090	$ 35,595
Other comprehensive income:
Net unrealized gains on available-for-sale securities, net of tax	1,463	516
Other comprehensive income	1,463	516
Comprehensive income	$ 19,553	$ 36,111

Condensed Consolidated Stateme6

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income	$ 18,090	$ 35,595
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization of property and equipment	385	424
Amortization of intangible assets	6,022	4,696
Stock-based compensation expense	3,640	2,007
Deferred income tax and other, net	2,791	3,377
Amortization of premium or discount on investments	1,581	(3)
Changes in operating assets and liabilities:
Accounts receivable, net	(1,459)	(429)
Other assets	2,162	3,787
Accounts payable	(245)	(2,321)
Accrued legal fees	3,542	(876)
Accrued and other liabilities	(3,241)	(7,680)
Deferred revenue	(3,120)	(298)
Net cash from operating activities	30,148	38,279
Cash flows from investing activities:
Purchases of property and equipment	(2,044)	(317)
Purchases of short-term available-for-sale investments	(30,467)	(168,520)
Proceeds from maturities and sales of short-term and long-term investments	59,482	134,584
Purchases of intangible assets	0	(1,600)
Net cash from investing activities	26,971	(35,853)
Cash flows from financing activities:
Dividend paid	(9,986)	(10,538)
Proceeds from exercise of stock options	798	5,650
Proceeds from employee stock purchase program	1,081	886
Repurchase of common stock	(38,176)	(32,026)
Net cash from financing activities	(46,283)	(36,028)
Net increase (decrease) in cash and cash equivalents	10,836	(33,602)
Cash and cash equivalents at beginning of period	22,599	50,908
Cash and cash equivalents at end of period	$ 33,435	$ 17,306

The Company And Basis Of Presen

The Company And Basis Of Presentation	3 Months Ended
	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company And Basis Of Presentation	THE COMPANY AND BASIS OF PRESENTATION Tessera Technologies, Inc., including its Invensas and FotoNation subsidiaries (the "Company"), licenses its technologies and intellectual property to customers for use in areas such as mobile computing and communications, memory and data storage, and 3-D Integrated Circuit (“3D-IC”) technologies, among others. Our technologies include semiconductor packaging and interconnect solutions, including xFD ® , BVA ® , ZiBond ® , and DBI ® , and products and solutions for mobile and computational imaging, including our FaceTools ® , FacePower ® , FotoSavvy ® , DigitalAperture TM , IrisCam ™ , LifeFocus ™ , face beautification, red-eye removal, High Dynamic Range, autofocus, panorama, and image stabilization intellectual property. The accompanying interim unaudited condensed consolidated financial statements as of March 31, 2016 and 2015, 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, 2015 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, 2015, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015, filed on February 22, 2016 (the “Form 10-K”). The results of operations for the three months ended March 31, 2016 are not necessarily indicative of the results that may be expected for the full year ended December 31, 2016 or any future period and the Company makes no representations related thereto. Reclassification Certain reclassifications have been made to prior period balances in order to conform to the current period’s presentation.

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES There have been no significant changes in the Company’s significant accounting policies during the three months ended March 31, 2016, as compared to the significant accounting policies described in the Form 10-K. Recently Adopted Accounting Pronouncements In June 2014, the Financial Accounting Standards Board ("FASB") issued ASU No. 2014-12, Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period (“ASU 2014-12”). The amendments in ASU 2014-12 require that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. A reporting entity should apply existing guidance in Accounting Standards Codification Topic No. 718, “Compensation - Stock Compensation” (“ASC 718”), as it relates to awards with performance conditions that affect vesting to account for such awards. The amendments in ASU 2014-12 were adopted effective January 1, 2016. The implementation of this guidance did not have a material impact to the disclosures in the Company’s consolidated financial statements. Recent Accounting Pronouncements In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers" (“ASU 2014-09”), which provides guidance for revenue recognition. ASU 2014-09 affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets and supersedes the revenue recognition requirements in Topic 605, “Revenue Recognition,” and most industry-specific guidance. This ASU also supersedes some cost guidance included in Subtopic 605-35, “Revenue Recognition-Construction-Type and Production-Type Contracts.” ASU 2014-09’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which a company expects to be entitled in exchange for those goods or services. In doing so, companies will need to use more judgment and make more estimates than under today’s guidance, including identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. ASU 2014-09 is effective for the Company beginning January 1, 2018 and, at that time, the Company may adopt the new standard under the full retrospective approach or the modified retrospective approach. At this time, some of the current guidance impacting the intellectual property licensing industry has not been finalized. Therefore, the Company is still considering how the guidance might affect its financial reporting once finalized and is still considering method of adoption. In February 2016, the FASB issued ASU 2016-02 "Leases (Topic 842)." The core principle of Topic 842 is that a lessee should recognize the assets and liabilities that arise from leases while the accounting by a lessor is largely unchanged from that applied under previous GAAP. The amendments in this update are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is currently evaluating the impact of the adoption of this new standard. In March 2016, the FASB issued Accounting Standards Update No. 2016-09, Compensation - Stock Compensation (Topic 718) (“ASU 2016-09”). ASU 2016-09 identifies areas for simplification involving several aspects of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, an option to recognize gross stock compensation expense with actual forfeitures recognized as they occur, as well as certain classifications on the statement of cash flows. This guidance is effective for fiscal years beginning after December 15, 2016 and for interim periods within those fiscal years, with early adoption permitted. The Company is currently assessing the impact the adoption of this new accounting standard would have on its consolidated financial statements and footnote disclosures, as well as whether or not to early adopt this accounting standard.

Composition Of Certain Financia

Composition Of Certain Financial Statement Captions	3 Months Ended
	Mar. 31, 2016
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, 2016 December 31, 2015 Prepaid income taxes $ 21,065 $ 22,890 Interest receivable 2,386 2,427 Other 2,691 2,813 $ 26,142 $ 28,130 Accrued liabilities consisted of the following (in thousands): March 31, 2016 December 31, 2015 Employee compensation and benefits $ 4,007 $ 6,993 Other 3,014 3,269 $ 7,021 $ 10,262 Accumulated other comprehensive income (loss) consisted of the following (in thousands): March 31, 2016 December 31, 2015 Unrealized gain (loss) on available-for-sale securities, net of tax $ 26 $ (1,437 ) $ 26 $ (1,437 )

Financial Instruments

Financial Instruments	3 Months Ended
	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Financial Instruments	FINANCIAL INSTRUMENTS The following is a summary of marketable securities at March 31, 2016 and December 31, 2015 (in thousands): March 31, 2016 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Available-for-sale securities Corporate bonds and notes $ 223,237 $ 237 $ (290 ) $ 223,184 Municipal bonds and notes 65,509 76 (6 ) 65,579 Commercial paper 13,855 5 — 13,860 Treasury and agency notes and bills 30,035 7 (4 ) 30,038 Money market funds 6,579 — — 6,579 Total available-for-sale securities $ 339,215 $ 325 $ (300 ) $ 339,240 Reported in: Cash and cash equivalents $ 9,228 Short-term investments 330,012 Total marketable securities $ 339,240 December 31, 2015 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Available-for-sale securities Corporate bonds and notes $ 257,461 $ 7 $ (1,286 ) $ 256,182 Municipal bonds and notes 70,772 12 (81 ) 70,703 Treasury and agency notes and bills 26,973 — (93 ) 26,880 Commercial paper 5,377 3 — 5,380 Money market funds 715 — — 715 Total available-for-sale securities $ 361,298 $ 22 $ (1,460 ) $ 359,860 Reported in: Cash and cash equivalents $ 715 Short-term investments 359,145 Total marketable securities $ 359,860 At March 31, 2016 and December 31, 2015 , the Company had $363.4 million and $381.7 million , respectively, in cash, cash equivalents and short-term investments. The majority of these amounts were held in marketable securities, as shown above. The remaining balance of $24.2 million and $21.9 million at March 31, 2016 and December 31, 2015 , respectively, was cash held in operating accounts not included in the tables above. The gross realized gains and losses on sales of marketable securities were not significant during the three months ended March 31, 2016 and 2015 . Unrealized losses and unrealized gains were $(0.2) million and $0.2 million , respectively, net of tax, as of March 31, 2016 . 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, 2016 because the Company has the 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, 2016 and 2015 , 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, 2016 and December 31, 2015, which have been in a continuous unrealized loss position, aggregated by investment category and length of time (in thousands): March 31, 2016 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 $ 60,454 $ (224 ) $ 59,476 $ (66 ) $ 119,930 $ (290 ) Treasury and agency notes and bills 12,797 (4 ) — — 12,797 (4 ) Municipal bonds and notes 15,330 (6 ) — — 15,330 (6 ) Commercial paper 5,959 — — — 5,959 — Total $ 94,540 $ (234 ) $ 59,476 $ (66 ) $ 154,016 $ (300 ) December 31, 2015 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 $ 183,491 $ (1,162 ) $ 70,447 $ (124 ) $ 253,938 $ (1,286 ) Municipal bonds and notes 60,976 (81 ) — — 60,976 (81 ) Treasury and agency notes and bills 26,880 (93 ) — — 26,880 (93 ) Total $ 271,347 $ (1,336 ) $ 70,447 $ (124 ) $ 341,794 $ (1,460 ) The estimated fair value of marketable securities by contractual maturity at March 31, 2016 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 $ 151,872 Due in one to two years 130,270 Due in two to three years 57,098 Total $ 339,240

Fair Value

Fair Value	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value	FAIR VALUE The Company follows the authoritative guidance 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, we are required to maximize the use of quoted market prices and minimize the use of unobservable inputs. We calculate the fair value of our 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, 2015 and March 31, 2016. 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, 2016 (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) $ 6,579 $ 6,579 $ — $ — Corporate bonds and notes (2) 223,184 — 223,184 — Municipal bonds and notes (2) 65,579 — 65,579 — Treasury and agency notes and bills (2) 30,038 — 30,038 — Commercial paper (3) 13,860 — 13,860 — Total Assets $ 339,240 $ 6,579 $ 332,661 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at March 31, 2016 : (1) Reported as cash and cash equivalents. (2) Reported as short-term investments. (3) Reported as either cash and cash equivalents or 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, 2015 (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) $ 715 $ 715 $ — $ — Corporate bonds and notes (2) 256,182 — 256,182 — Municipal bonds and notes (2) 70,703 — 70,703 — Treasury and agency notes and bills (2) 26,880 — 26,880 — Commercial paper (3) 5,380 — 5,380 — Total Assets $ 359,860 $ 715 $ 359,145 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at December 31, 2015 : (1) Reported as cash and cash equivalents. (2) Reported as short-term investments. (3) Reported as either cash and cash equivalents or short-term investments.

Goodwill and Identified Intangi

Goodwill and Identified Intangible Assets	3 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Identified Intangible Assets	GOODWILL AND IDENTIFIED INTANGIBLE ASSETS The balance of our goodwill, which was recorded as a result of business acquisitions in 2014 and 2015, is $10.1 million at March 31, 2016 and December 31, 2015, respectively, and is included in other assets on our Condensed Consolidated Balance Sheet. Identified intangible assets consisted of the following (in thousands): March 31, 2016 December 31, 2015 Average Life (Years) Gross Assets Accumulated Amortization Net Gross Assets Accumulated Amortization Net Acquired patents / core technology 3-15 $ 140,345 $ (83,539 ) $ 56,806 $ 140,345 $ (79,128 ) $ 61,217 Existing technology 5-10 50,620 (21,313 ) 29,307 50,620 (20,182 ) 30,438 Customer contracts 3-9 10,200 (8,231 ) 1,969 10,200 (7,792 ) 2,408 Trade name 4-10 1,600 (615 ) 985 1,600 (574 ) 1,026 $ 202,765 $ (113,698 ) $ 89,067 $ 202,765 $ (107,676 ) $ 95,089 Amortization expense for the three months ended March 31, 2016 and 2015 amounted to $6.0 million and $4.7 million , respectively. As of March 31, 2016 , the estimated future amortization expense of intangible assets is as follows (in thousands): 2016 (remaining 9 months) $ 18,235 2017 21,636 2018 19,359 2019 10,926 2020 6,777 Thereafter 12,134 $ 89,067

Net Income (Loss) Per Share

Net Income (Loss) Per Share	3 Months Ended
	Mar. 31, 2016
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	NET INCOME (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 earnings per share calculation for the three months ended March 31, 2016 and 2015. The following table sets forth the computation of basic and diluted shares (in thousands): Three Months Ended March 31, 2016 March 31, 2015 Denominator: Weighted average common shares outstanding 50,020 52,614 Less: Unvested common shares subject to repurchase (22 ) (55 ) Total common shares-basic 49,998 52,559 Effect of dilutive securities: Stock awards 207 433 Restricted stock awards and units 361 542 Total common shares-diluted 50,566 53,534 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, the average unrecognized stock compensation cost during the period and any tax benefits that will be credited upon exercise to additional paid-in capital. For the three months ended March 31, 2016 and 2015, in the calculation of net income per share, 0.3 million and 1.1 million shares, respectively, 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

Stockholders' Equity	3 Months Ended
	Mar. 31, 2016
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, 2016 , the Company has repurchased a total of approximately 9,487,000 shares of common stock, since inception of the plan, at an average price of $27.47 per share for a total cost of $260.6 million . As of December 31, 2015 , the Company had repurchased a total of approximately 8,234,000 shares of common stock, since inception of the plan, at an average price of $27.22 per share for a total cost of $224.1 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, 2016 , the total remaining amount available for repurchase was $189.4 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, 2016 , there were approximately 3.4 million shares reserved for future grant under the Company’s 2003 Equity Incentive Plan (the “2003 Plan”). . A summary of the stock option activity is presented below (in thousands, except per share amounts): Options Outstanding Number of Shares Subject to Options Weighted Average Exercise Price Per Share Balance at December 31, 2015 1,143 $20.63 Options granted — — Options exercised (46 ) $17.65 Options canceled / forfeited / expired (9 ) $19.26 Balance at March 31, 2016 1,088 $20.77 Restricted Stock Awards and Units Information with respect to outstanding restricted stock awards and units as of March 31, 2016 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, 2015 690 519 1,209 $ 29.28 Awards and units granted 485 — 485 $ 30.16 Awards and units vested / earned (110 ) (80 ) (190 ) $ 32.02 Awards and units canceled / forfeited (6 ) (75 ) (81 ) $ 23.35 Balance at March 31, 2016 1,059 364 1,423 $ 29.56 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, 2016 , there were approximately 447,052 shares reserved for grant under the Company’s 2003 Employee Stock Purchase Plan (the “ESPP”) and the International Employee Stock Purchase Plan (the “International ESPP”), collectively.

Stock-Based Compensation Expens

Stock-Based Compensation Expense	3 Months Ended
	Mar. 31, 2016
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, 2016 and 2015 is as follows (in thousands): Three Months Ended March 31, 2016 March 31, 2015 Research, development and other related costs $ 1,384 $ 690 Selling, general and administrative 2,256 1,317 Total stock-based compensation expense 3,640 2,007 Tax effect on stock-based compensation expense (1,010 ) (486 ) Net effect on net income (loss) $ 2,630 $ 1,521 Stock-based compensation expense categorized by various equity components for the three months ended March 31, 2016 and 2015 is summarized in the table below (in thousands): Three Months Ended March 31, 2016 March 31, 2015 Employee stock options $ 509 $ 885 Restricted stock awards and units 2,932 973 Employee stock purchase plan 199 149 Total stock-based compensation expense $ 3,640 $ 2,007 The following assumptions were used to value the options granted: Three Months Ended March 31, 2016 March 31, 2015 Expected life (in years) * 3.8 Risk-free interest rate * 1.4 % Dividend yield * 2.9 % Expected volatility * 35.5 % * There were no options granted in the three months ended March 31, 2016. ESPP grants occur in February and August. The following assumptions were used to value the ESPP shares for these grants: February 2016 February 2015 Expected life (years) 2.0 2.0 Risk-free interest rate 0.8 % 0.4 % Dividend yield 2.4 % 3.4 % Expected volatility 30.0 % 30.0 %

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The provision for income taxes for the three months ended March 31, 2016 was $8.9 million and was primarily related to foreign withholding taxes and tax liability generated from U.S. and foreign operations. The provision for income taxes for the three months ended March 31, 2015 was $17.2 million and was primarily related to foreign withholding taxes and tax liability generated from U.S. and foreign operations. The Company's provision for income taxes is based on its worldwide estimated annualized effective tax rate, except for jurisdictions for which a loss is expected for the year and no benefit can be realized for those losses, and the tax effect of discrete items occurring during the period. The tax for jurisdictions for which a loss is expected and no benefit can be realized for the year is based on actual taxes and tax reserves for the quarter. The decrease in the provision for income taxes for the three months ended March 31, 2016 as compared to the same period in the prior year is largely attributable to a decrease in profits and foreign withholding taxes for the current period. As of March 31, 2016, unrecognized tax benefits were $3.2 million (which is included in long-term deferred tax and other liabilities on the Condensed Consolidated Balance Sheet), of which $2.4 million would affect the effective tax rate if recognized. At December 31, 2015, unrecognized tax benefits were $3.1 million of which $2.4 million would affect the effective tax rate if recognized. It is reasonably possible that unrecognized tax benefits may decrease by $0.3 million in the next 12 months due to the expected lapse of statute of limitation relating to foreign tax incentives. 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, 2016 and March 31, 2015, the Company recognized an insignificant amount of interest and penalties related to unrecognized tax benefits. As of March 31, 2016 and December 31, 2015, the Company had accrued $0.6 million and $0.5 million , respectively, of interest and penalties related to unrecognized tax benefits. At March 31, 2016, the Company's 2010 through 2015 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 utilized in an open year may also be subject to examination. The Company completed an Internal Revenue Service examination related to its 2008 and 2009 tax returns which resulted in minimal changes to the statement of operations. The audit was settled in 2014 but the Company is currently disputing the interest calculation for the audit assessment amount. The Company is currently under an Internal Revenue Service examination for the 2010 through 2013 tax years. The Company also is currently under examination in California for the 2011 and 2012 tax years.

Commitments And Contingencies

Commitments And Contingencies	3 Months Ended
	Mar. 31, 2016
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 2020. The amounts reflected in the table below are for the aggregate future minimum lease payments under non-cancelable facility and equipment operating leases. Under lease agreements that contain escalating rent provisions, lease expense is recorded on a straight-line basis over the lease term. Rent expense for the three months ended March 31, 2016 and 2015 amounted to $0.5 million in each period. As of March 31, 2016 , future minimum lease payments are as follows (in thousands): Lease Obligations 2016 (remaining 9 months) $ 1,855 2017 2,579 2018 2,606 2019 2,458 2020 2,094 Thereafter 282 $ 11,874 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 is scheduled for September 22, 2016. The fact discovery cutoff is October 31, 2016, and the expert discovery cutoff is January 23, 2017. A hearing on any remaining motions for summary judgment is set for March 16, 2017. Trial is scheduled to begin on June 19, 2017. 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 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 revenues. The costs associated with legal proceedings are typically high, relatively unpredictable and not completely within the Company’s control. These costs may be materially higher than expected, which could adversely affect the Company’s operating results and lead to volatility in the price of its common stock. Whether or not determined in the Company’s favor or ultimately settled, litigation diverts managerial, technical, legal and financial resources from the Company’s business operations. Furthermore, an adverse decision in any of these legal actions could result in a loss of the Company’s proprietary rights, subject the Company to significant liabilities, require the Company to seek licenses from others, limit the value of the Company’s licensed technology or otherwise negatively impact the Company’s stock price or its business and consolidated financial position, results of operations or cash flows.

Segment And Geographic Informat

Segment And Geographic Information	3 Months Ended
	Mar. 31, 2016
Segment Reporting [Abstract]
Segment And Geographic Information	SEGMENT AND GEOGRAPHIC INFORMATION The Company operates its business in one operating segment, focused on the monetization of intellectual property, both internally developed and acquired, through royalties, licenses and other means. A significant portion of the Company’s revenues is derived from licensees headquartered outside of the U.S., principally in Asia, and it is expected that these revenues will continue to account for a significant portion of total revenues in future periods. The table below lists the geographic revenues from continuing operations for the periods indicated (in thousands): Three Months Ended, March 31, 2016 March 31, 2015 U.S. $ 28,661 48 % $ 25,530 32 % Korea 13,821 23 15,366 19 Taiwan 7,199 12 34,781 44 Japan 3,677 6 1,644 2 Other 6,619 11 2,529 3 $ 59,977 100 % $ 79,850 100 % For the three months ended March 31, 2016 and 2015, there were four customers in each period that each accounted for 10% or more of total revenues.

Subsequent Event

Subsequent Event	3 Months Ended
	Mar. 31, 2016
Subsequent Events [Abstract]
Subsequent Event	SUBSEQUENT EVENTS On April 26, 2016, the Board declared a cash dividend of $0.20 per share of common stock, payable on June 14, 2016 for the stockholders of record at the close of business on May 24, 2016.

Summary Of Significant Accoun20

Summary Of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2016
Accounting Policies [Abstract]
Basis of Accounting	The accompanying interim unaudited condensed consolidated financial statements as of March 31, 2016 and 2015, 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, 2015 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, 2015, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015, filed on February 22, 2016 (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.
New Accounting Pronouncement	Recently Adopted Accounting Pronouncements In June 2014, the Financial Accounting Standards Board ("FASB") issued ASU No. 2014-12, Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period (“ASU 2014-12”). The amendments in ASU 2014-12 require that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. A reporting entity should apply existing guidance in Accounting Standards Codification Topic No. 718, “Compensation - Stock Compensation” (“ASC 718”), as it relates to awards with performance conditions that affect vesting to account for such awards. The amendments in ASU 2014-12 were adopted effective January 1, 2016. The implementation of this guidance did not have a material impact to the disclosures in the Company’s consolidated financial statements. Recent Accounting Pronouncements In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers" (“ASU 2014-09”), which provides guidance for revenue recognition. ASU 2014-09 affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets and supersedes the revenue recognition requirements in Topic 605, “Revenue Recognition,” and most industry-specific guidance. This ASU also supersedes some cost guidance included in Subtopic 605-35, “Revenue Recognition-Construction-Type and Production-Type Contracts.” ASU 2014-09’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which a company expects to be entitled in exchange for those goods or services. In doing so, companies will need to use more judgment and make more estimates than under today’s guidance, including identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. ASU 2014-09 is effective for the Company beginning January 1, 2018 and, at that time, the Company may adopt the new standard under the full retrospective approach or the modified retrospective approach. At this time, some of the current guidance impacting the intellectual property licensing industry has not been finalized. Therefore, the Company is still considering how the guidance might affect its financial reporting once finalized and is still considering method of adoption.

Composition Of Certain Financ21

Composition Of Certain Financial Statement Captions (Tables)	3 Months Ended
	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Other Current Assets	Other current assets consisted of the following (in thousands): March 31, 2016 December 31, 2015 Prepaid income taxes $ 21,065 $ 22,890 Interest receivable 2,386 2,427 Other 2,691 2,813 $ 26,142 $ 28,130
Accrued Liabilities	Accrued liabilities consisted of the following (in thousands): March 31, 2016 December 31, 2015 Employee compensation and benefits $ 4,007 $ 6,993 Other 3,014 3,269 $ 7,021 $ 10,262
Accumulated Other Comprehensive Income (Loss)	Accumulated other comprehensive income (loss) consisted of the following (in thousands): March 31, 2016 December 31, 2015 Unrealized gain (loss) on available-for-sale securities, net of tax $ 26 $ (1,437 ) $ 26 $ (1,437 )

Financial Instruments (Tables)

Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Summary of Marketable Securities	The following is a summary of marketable securities at March 31, 2016 and December 31, 2015 (in thousands): March 31, 2016 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Available-for-sale securities Corporate bonds and notes $ 223,237 $ 237 $ (290 ) $ 223,184 Municipal bonds and notes 65,509 76 (6 ) 65,579 Commercial paper 13,855 5 — 13,860 Treasury and agency notes and bills 30,035 7 (4 ) 30,038 Money market funds 6,579 — — 6,579 Total available-for-sale securities $ 339,215 $ 325 $ (300 ) $ 339,240 Reported in: Cash and cash equivalents $ 9,228 Short-term investments 330,012 Total marketable securities $ 339,240 December 31, 2015 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Available-for-sale securities Corporate bonds and notes $ 257,461 $ 7 $ (1,286 ) $ 256,182 Municipal bonds and notes 70,772 12 (81 ) 70,703 Treasury and agency notes and bills 26,973 — (93 ) 26,880 Commercial paper 5,377 3 — 5,380 Money market funds 715 — — 715 Total available-for-sale securities $ 361,298 $ 22 $ (1,460 ) $ 359,860 Reported in: Cash and cash equivalents $ 715 Short-term investments 359,145 Total marketable securities $ 359,860
Schedule of Gross Unrealized Losses on Investments	The following table summarizes the fair value and gross unrealized losses related to individual available-for-sale securities at March 31, 2016 and December 31, 2015, which have been in a continuous unrealized loss position, aggregated by investment category and length of time (in thousands): March 31, 2016 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 $ 60,454 $ (224 ) $ 59,476 $ (66 ) $ 119,930 $ (290 ) Treasury and agency notes and bills 12,797 (4 ) — — 12,797 (4 ) Municipal bonds and notes 15,330 (6 ) — — 15,330 (6 ) Commercial paper 5,959 — — — 5,959 — Total $ 94,540 $ (234 ) $ 59,476 $ (66 ) $ 154,016 $ (300 ) December 31, 2015 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 $ 183,491 $ (1,162 ) $ 70,447 $ (124 ) $ 253,938 $ (1,286 ) Municipal bonds and notes 60,976 (81 ) — — 60,976 (81 ) Treasury and agency notes and bills 26,880 (93 ) — — 26,880 (93 ) Total $ 271,347 $ (1,336 ) $ 70,447 $ (124 ) $ 341,794 $ (1,460 )
Estimated Fair Value of Marketable Securities by Contractual Maturity	The estimated fair value of marketable securities by contractual maturity at March 31, 2016 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 $ 151,872 Due in one to two years 130,270 Due in two to three years 57,098 Total $ 339,240

Fair Value (Tables)

Fair Value (Tables)	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis	The following is a list of the Company’s assets required to be measured at fair value on a recurring basis and where they were classified within the hierarchy as of March 31, 2016 (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) $ 6,579 $ 6,579 $ — $ — Corporate bonds and notes (2) 223,184 — 223,184 — Municipal bonds and notes (2) 65,579 — 65,579 — Treasury and agency notes and bills (2) 30,038 — 30,038 — Commercial paper (3) 13,860 — 13,860 — Total Assets $ 339,240 $ 6,579 $ 332,661 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at March 31, 2016 : (1) Reported as cash and cash equivalents. (2) Reported as short-term investments. (3) Reported as either cash and cash equivalents or 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, 2015 (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) $ 715 $ 715 $ — $ — Corporate bonds and notes (2) 256,182 — 256,182 — Municipal bonds and notes (2) 70,703 — 70,703 — Treasury and agency notes and bills (2) 26,880 — 26,880 — Commercial paper (3) 5,380 — 5,380 — Total Assets $ 359,860 $ 715 $ 359,145 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at December 31, 2015 : (1) Reported as cash and cash equivalents. (2) Reported as short-term investments. (3) Reported as either cash and cash equivalents or short-term investments.

Goodwill and Identified Intan24

Goodwill and Identified Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Identified Intangible Assets	Identified intangible assets consisted of the following (in thousands): March 31, 2016 December 31, 2015 Average Life (Years) Gross Assets Accumulated Amortization Net Gross Assets Accumulated Amortization Net Acquired patents / core technology 3-15 $ 140,345 $ (83,539 ) $ 56,806 $ 140,345 $ (79,128 ) $ 61,217 Existing technology 5-10 50,620 (21,313 ) 29,307 50,620 (20,182 ) 30,438 Customer contracts 3-9 10,200 (8,231 ) 1,969 10,200 (7,792 ) 2,408 Trade name 4-10 1,600 (615 ) 985 1,600 (574 ) 1,026 $ 202,765 $ (113,698 ) $ 89,067 $ 202,765 $ (107,676 ) $ 95,089
Estimated Future Amortization Expense	As of March 31, 2016 , the estimated future amortization expense of intangible assets is as follows (in thousands): 2016 (remaining 9 months) $ 18,235 2017 21,636 2018 19,359 2019 10,926 2020 6,777 Thereafter 12,134 $ 89,067

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	3 Months Ended
	Mar. 31, 2016
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, 2016 March 31, 2015 Denominator: Weighted average common shares outstanding 50,020 52,614 Less: Unvested common shares subject to repurchase (22 ) (55 ) Total common shares-basic 49,998 52,559 Effect of dilutive securities: Stock awards 207 433 Restricted stock awards and units 361 542 Total common shares-diluted 50,566 53,534

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2016
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, 2015 1,143 $20.63 Options granted — — Options exercised (46 ) $17.65 Options canceled / forfeited / expired (9 ) $19.26 Balance at March 31, 2016 1,088 $20.77
Summary of Restricted Stock Awards and Units	Information with respect to outstanding restricted stock awards and units as of March 31, 2016 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, 2015 690 519 1,209 $ 29.28 Awards and units granted 485 — 485 $ 30.16 Awards and units vested / earned (110 ) (80 ) (190 ) $ 32.02 Awards and units canceled / forfeited (6 ) (75 ) (81 ) $ 23.35 Balance at March 31, 2016 1,059 364 1,423 $ 29.56

Stock-Based Compensation Expe27

Stock-Based Compensation Expense (Tables)	3 Months Ended
	Mar. 31, 2016
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, 2016 and 2015 is as follows (in thousands): Three Months Ended March 31, 2016 March 31, 2015 Research, development and other related costs $ 1,384 $ 690 Selling, general and administrative 2,256 1,317 Total stock-based compensation expense 3,640 2,007 Tax effect on stock-based compensation expense (1,010 ) (486 ) Net effect on net income (loss) $ 2,630 $ 1,521
Stock-Based Compensation Expense Categorized by Equity Components	Stock-based compensation expense categorized by various equity components for the three months ended March 31, 2016 and 2015 is summarized in the table below (in thousands): Three Months Ended March 31, 2016 March 31, 2015 Employee stock options $ 509 $ 885 Restricted stock awards and units 2,932 973 Employee stock purchase plan 199 149 Total stock-based compensation expense $ 3,640 $ 2,007
Schedule of Assumptions Used To Value Options Granted	The following assumptions were used to value the options granted: Three Months Ended March 31, 2016 March 31, 2015 Expected life (in years) * 3.8 Risk-free interest rate * 1.4 % Dividend yield * 2.9 % Expected volatility * 35.5 % * There were no options granted in the three months ended March 31, 2016. ESPP grants occur in February and August. The following assumptions were used to value the ESPP shares for these grants: February 2016 February 2015 Expected life (years) 2.0 2.0 Risk-free interest rate 0.8 % 0.4 % Dividend yield 2.4 % 3.4 % Expected volatility 30.0 % 30.0 %

Commitments And Contingencies (

Commitments And Contingencies (Tables)	3 Months Ended
	Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Lease Payments and Purchase Obligations	As of March 31, 2016 , future minimum lease payments are as follows (in thousands): Lease Obligations 2016 (remaining 9 months) $ 1,855 2017 2,579 2018 2,606 2019 2,458 2020 2,094 Thereafter 282 $ 11,874

Segment And Geographic Inform29

Segment And Geographic Information (Tables)	3 Months Ended
	Mar. 31, 2016
Segment Reporting [Abstract]
Schedule of Geographic Revenue Information	The table below lists the geographic revenues from continuing operations for the periods indicated (in thousands): Three Months Ended, March 31, 2016 March 31, 2015 U.S. $ 28,661 48 % $ 25,530 32 % Korea 13,821 23 15,366 19 Taiwan 7,199 12 34,781 44 Japan 3,677 6 1,644 2 Other 6,619 11 2,529 3 $ 59,977 100 % $ 79,850 100 %

Composition Of Certain Financ30

Composition Of Certain Financial Statement Captions - Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid income taxes	$ 21,065	$ 22,890
Interest receivable	2,386	2,427
Other	2,691	2,813
Other current assets, total	$ 26,142	$ 28,130

Composition Of Certain Financ31

Composition Of Certain Financial Statement Captions - Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Employee compensation and benefits	$ 4,007	$ 6,993
Other	3,014	3,269
Accrued liabilities, total	$ 7,021	$ 10,262

Composition Of Certain Financ32

Composition Of Certain Financial Statement Captions - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Unrealized gain (loss) on available-for-sale securities, net of tax	$ 26	$ (1,437)
Accumulated other comprehensive income (loss)	$ 26	$ (1,437)

Financial Instruments - Summary

Financial Instruments - Summary of Marketable Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	$ 339,215	$ 361,298
Available-for-sale securities, Gross Unrealized Gains	325	22
Available-for-sale securities, Gross Unrealized Losses	(300)	(1,460)
Estimated Fair Values	339,240	359,860
Corporate Bonds And Notes
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	223,237	257,461
Available-for-sale securities, Gross Unrealized Gains	237	7
Available-for-sale securities, Gross Unrealized Losses	(290)	(1,286)
Estimated Fair Values	223,184	256,182
Municipal Bonds And Notes
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	65,509	70,772
Available-for-sale securities, Gross Unrealized Gains	76	12
Available-for-sale securities, Gross Unrealized Losses	(6)	(81)
Estimated Fair Values	65,579	70,703
Commercial Paper
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	13,855	5,377
Available-for-sale securities, Gross Unrealized Gains	5	3
Available-for-sale securities, Gross Unrealized Losses	0	0
Estimated Fair Values	13,860	5,380
Treasury And Agency Notes And Bills
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	30,035	26,973
Available-for-sale securities, Gross Unrealized Gains	7	0
Available-for-sale securities, Gross Unrealized Losses	(4)	(93)
Estimated Fair Values	30,038	26,880
Money Market Funds
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	6,579	715
Available-for-sale securities, Gross Unrealized Gains	0	0
Available-for-sale securities, Gross Unrealized Losses	0	0
Estimated Fair Values	6,579	715
Cash and Cash Equivalents
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Values	9,228	715
Short-term Investments
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Values	$ 330,012	$ 359,145

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Schedule of Investments [Line Items]
Cash, cash equivalents and short-term investments	$ 363.4	$ 381.7
Unrealized loss, net	(0.2)
Unrealized gain, net	0.2
Operating Accounts
Schedule of Investments [Line Items]
Cash, cash equivalents and short-term investments	$ 24.2	$ 21.9

Financial Instruments - Fair Va

Financial Instruments - Fair Value and Gross Unrealized Losses Related to Individual Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 94,540	$ 271,347
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(234)	(1,336)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	59,476	70,447
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(66)	(124)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	154,016	341,794
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(300)	(1,460)
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	60,454	183,491
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(224)	(1,162)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	59,476	70,447
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(66)	(124)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	119,930	253,938
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(290)	(1,286)
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	12,797	26,880
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(4)	(93)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	12,797	26,880
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(4)	(93)
Municipal 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	15,330	60,976
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(6)	(81)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	15,330	60,976
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(6)	$ (81)
Commercial Paper
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	5,959
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	5,959
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	$ 0

Financial Instruments - Estimat

Financial Instruments - Estimated Fair Value of Marketable Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Due in one year or less	$ 151,872
Due in one to two years	130,270
Due in two to three years	57,098
Estimated Fair Values	$ 339,240	$ 359,860

Fair Value - Assets Required to

Fair Value - Assets Required to be Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 339,240	$ 359,860
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	6,579	715
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	332,661	359,145
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	6,579	715
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	6,579	715
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
Corporate Bonds And Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	223,184	256,182
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	223,184	256,182
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
Municipal Bonds And Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	65,579	70,703
Municipal 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
Municipal Bonds And Notes | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	65,579	70,703
Municipal 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	30,038	26,880
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	30,038	26,880
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	13,860	5,380
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	13,860	5,380
Commercial Paper | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 0	$ 0

Goodwill and Identified Intan38

Goodwill and Identified Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 10,100		$ 10,100
Amortization expense	$ 6,022	$ 4,696

Goodwill and Identified Intan39

Goodwill and Identified Intangible Assets - Identified Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Assets	$ 202,765	$ 202,765
Accumulated Amortization	(113,698)	(107,676)
Net	89,067	95,089
Acquired Patents Core Technology
Finite-Lived Intangible Assets [Line Items]
Gross Assets	140,345	140,345
Accumulated Amortization	(83,539)	(79,128)
Net	$ 56,806	61,217
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]
Gross Assets	$ 50,620	50,620
Accumulated Amortization	(21,313)	(20,182)
Net	$ 29,307	30,438
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
Finite-Lived Intangible Assets [Line Items]
Gross Assets	$ 10,200	10,200
Accumulated Amortization	(8,231)	(7,792)
Net	$ 1,969	2,408
Customer Contracts | Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	3 years
Customer Contracts | Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	9 years
Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Assets	$ 1,600	1,600
Accumulated Amortization	(615)	(574)
Net	$ 985	$ 1,026
Trade Names | Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	4 years
Trade Names | Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	10 years

Goodwill and Identified Intan40

Goodwill and Identified Intangible Assets - Estimated Future Amortization Expense of Intangible Assets, Excluding the In-Process Research and Development (Detail) $ in Thousands	Mar. 31, 2016USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2016 (remaining 9 months)	$ 18,235
2,017	21,636
2,018	19,359
2,019	10,926
2,020	6,777
Thereafter	12,134
Finite-lived intangible assets, net	$ 89,067

Net Income (Loss) Per Share - S

Net Income (Loss) Per Share - Schedule of Basic and Diluted Net Loss Per Share (Detail) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Denominator:
Weighted average common shares outstanding (in shares)	50,020	52,614
Less: Unvested common shares subject to repurchase	(22)	(55)
Total common shares-basic (in shares)	49,998	52,559
Effect of dilutive securities:
Stock awards (in shares)	207	433
Restricted stock awards and units (in shares)	361	542
Total common shares-diluted (in shares)	50,566	53,534

Net Income (Loss) Per Share - A

Net Income (Loss) Per Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share [Abstract]
Shares of common stock excluded from the computation of net loss per share	0.3	1.1

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	101 Months Ended	104 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2016
Schedule of Trading Securities and Other Trading Assets [Line Items]
Treasury stock, total repurchase during period (in shares)		8,234,000	9,487,000
Treasury stock, average price of share repurchased (in dollars per share)		$ 27.22	$ 27.47
Treasury stock, total cost of repurchased stock		$ 224.1	$ 260.6
Stock repurchase program, remaining amount available for repurchase	$ 189.4		$ 189.4
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	447,052		447,052
2003 Plan | Employee Stock Option
Schedule of Trading Securities and Other Trading Assets [Line Items]
Shares reserved for grant	3,400,000		3,400,000

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Stock Option Activity (Detail)	3 Months Ended
	Mar. 31, 2016$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares, Beginning balance (shares) | shares	1,143,000
Number of Shares, Options granted (shares) | shares	0
Number of Shares, Options exercised (shares) | shares	(46,000)
Number of Shares, Options cancelled / forfeited / expired (shares) | shares	(9,000)
Number of Shares, Ending balance (shares) | shares	1,088,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price Per Share, Beginning balance (usd per share) | $ / shares	$ 20.63
Weighted Average Exercise Price Per Share, Options granted (usd per share) | $ / shares	0
Weighted Average Exercise Price Per Share, Options exercised (usd per share) | $ / shares	17.65
Weighted Average Exercise Price Per Share, Options cancelled / forfeited / expired (usd per share) | $ / shares	19.26
Weighted Average Exercise Price Per Share, Ending balance (usd per share) | $ / shares	$ 20.77

Stockholders' Equity - Summar45

Stockholders' Equity - Summary of Restricted Stock Awards and Units (Detail) - Restricted Stock shares in Thousands	3 Months Ended
	Mar. 31, 2016$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Restricted stock awards and units, beginning balance (shares)	1,209
Restricted stock awards and units, granted (shares)	485
Restricted stock awards and units, vested / earned (shares)	(190)
Restricted stock awards and units, cancelled / forfeited (shares)	(81)
Restricted stock awards and units, ending balance (shares)	1,423
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant date fair value per share of restricted stock and units, beginning balance (usd per share) | $ / shares	$ 29.28
Weighted average grant date fair value per share of restricted stock and units, granted (usd per share) | $ / shares	30.16
Weighted average grant date fair value per share of restricted stock and units, vested / earned (usd per share) | $ / shares	32.02
Weighted average grant date fair value of restricted stock and units, cancelled / forfeited (usd per share) | $ / shares	23.35
Weighted average grant date fair value per share of restricted stock and units, ending balance (usd per share) | $ / shares	$ 29.56
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)	690
Restricted stock awards and units, granted (shares)	485
Restricted stock awards and units, vested / earned (shares)	(110)
Restricted stock awards and units, cancelled / forfeited (shares)	(6)
Restricted stock awards and units, ending balance (shares)	1,059
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)	519
Restricted stock awards and units, granted (shares)	0
Restricted stock awards and units, vested / earned (shares)	(80)
Restricted stock awards and units, cancelled / forfeited (shares)	(75)
Restricted stock awards and units, ending balance (shares)	364

Stock-Based Compensation Expe46

Stock-Based Compensation Expense - Effect of Recording Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 3,640	$ 2,007
Tax effect on stock-based compensation expense	(1,010)	(486)
Net effect on net income (loss)	2,630	1,521
Research, Development and Other Related Costs
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	1,384	690
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 2,256	$ 1,317

Stock-Based Compensation Expe47

Stock-Based Compensation Expense - Categorized by Equity Components (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 3,640	$ 2,007
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	509	885
Restricted Stock Awards And Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	2,932	973
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 199	$ 149

Stock-Based Compensation Expe48

Stock-Based Compensation Expense - Schedule of Assumptions Used to Value Options Granted (Detail) - shares	1 Months Ended		3 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Options granted (shares)			0
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected life (in years)				3 years 9 months 24 days
Risk-free interest rate				1.40%
Dividend yield				2.90%
Expected volatility				35.50%
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	0.80%	0.40%
Dividend yield	2.40%	3.40%
Expected volatility	30.00%	30.00%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Income Tax Contingency [Line Items]
Provision for income taxes	$ 8,872	$ 17,224
Unrecognized tax benefits	3,200		$ 3,100
Unrecognized tax benefits that would impact the effective income tax rate	2,400		2,400
Interest and penalties related to unrecognized tax benefits	600		$ 500
Minimum
Income Tax Contingency [Line Items]
Expected reduction resulting from lapse of applicable statute of limitations	$ 300

Commitments And Contingencies -

Commitments And Contingencies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Rent under operating lease agreement	$ 0.5	$ 0.5

Commitments And Contingencies51

Commitments And Contingencies - Schedule of Future Minimum Lease Payments and Purchase Obligations (Detail) $ in Thousands	Mar. 31, 2016USD ($)
Commitments and Contingencies Disclosure [Abstract]
2016 (remaining 9 months)	$ 1,855
2,017	2,579
2,018	2,606
2,019	2,458
2,020	2,094
Thereafter	282
Lease Obligations, Total	$ 11,874

Segment And Geographic Inform52

Segment And Geographic Information - Schedule of Geographic Revenue Information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)	Mar. 31, 2015USD ($)customer
Segment Reporting [Abstract]
Number of major customers each accounting for 10% or more of total revenues | customer		4
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 59,977	$ 79,850
Percentage of revenue	100.00%	100.00%
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 28,661	$ 25,530
Percentage of revenue	48.00%	32.00%
Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 13,821	$ 15,366
Percentage of revenue	23.00%	19.00%
Taiwan
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 7,199	$ 34,781
Percentage of revenue	12.00%	44.00%
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 3,677	$ 1,644
Percentage of revenue	6.00%	2.00%
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 6,619	$ 2,529
Percentage of revenue	11.00%	3.00%

Subsequent Event - Additional I

Subsequent Event - Additional Information (Detail) - $ / shares	Apr. 26, 2016	Mar. 31, 2016	Mar. 31, 2015
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