Tessera (TSRA) 10-Q 2 Aug 16 2016 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Jul. 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	Jun. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		48,573,411

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 43,427	$ 22,599
Short-term investments	328,331	359,145
Accounts receivable, net	1,621	1,784
Other current assets	24,129	28,130
Total current assets	397,508	411,658
Intangible assets, net	83,015	95,089
Long-term deferred tax assets	8,492	15,649
Other assets	18,313	16,956
Total assets	507,328	539,352
Current liabilities:
Accounts payable	1,221	1,090
Accrued legal fees	5,216	2,621
Accrued liabilities	9,031	10,262
Deferred revenue	2,717	6,805
Total current liabilities	18,185	20,778
Long-term deferred tax and other liabilities	3,329	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; 59,104 and 58,692 shares issued, respectively, and 48,566 and 50,294 shares outstanding, respectively	59	58
Additional paid-in capital	610,042	599,186
Treasury stock at cost; 10,538 and 8,398 shares of common stock at each period end, respectively	(293,369)	(229,513)
Accumulated other comprehensive income (loss)	393	(1,437)
Retained earnings	168,689	146,863
Total stockholders’ equity	485,814	515,157
Total liabilities and stockholders’ equity	$ 507,328	$ 539,352

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 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 (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)	59,104,000	58,692,000
Common stock, shares outstanding (in shares)	48,566,000	50,294,000
Treasury stock, shares (in shares)	10,538,000	8,398,000

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues:
Royalty and license fees	$ 67,020	$ 64,188	$ 126,997	$ 144,038
Total revenues	67,020	64,188	126,997	144,038
Operating expenses:
Cost of revenues	52	166	139	308
Research, development and other related costs	10,306	7,866	20,376	15,234
Selling, general and administrative	11,166	11,119	22,259	22,116
Amortization expense	6,052	4,691	12,074	9,386
Litigation expense	5,292	3,519	11,842	8,023
Total operating expenses	32,868	27,361	66,690	55,067
Operating income	34,152	36,827	60,307	88,971
Other income and expense, net	802	770	1,609	1,418
Income before taxes from continuing operations	34,954	37,597	61,916	90,389
Provision for income taxes	11,471	11,828	20,343	29,052
Income from continuing operations	23,483	25,769	41,573	61,337
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	0	342	0	369
Net income	$ 23,483	$ 26,111	$ 41,573	$ 61,706
Income per share:
Basic (in dollars per share)	$ 0.48	$ 0.49	$ 0.84	$ 1.17
Diluted (in dollars per share)	0.48	0.49	0.83	1.15
Income from discontinued operations:
Basic (in dollars per share)	0	0.01	0	0.01
Diluted (in dollars per share)	0	0.01	0	0.01
Net income:
Basic (in dollars per share)	0.48	0.50	0.84	1.18
Diluted (in dollars per share)	0.48	0.49	0.83	1.16
Cash dividends declared per share (in dollars per share)	$ 0.20	$ 0.20	$ 0.40	$ 0.40
Weighted average number of shares used in per share calculations-basic (in shares)	48,836	52,293	49,392	52,387
Weighted average number of shares used in per share calculations-diluted (in shares)	49,420	53,052	49,993	53,265

Condensed Consolidated Stateme5

Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 23,483	$ 26,111	$ 41,573	$ 61,706
Other comprehensive income (loss):
Net unrealized gains (losses) on available-for- sale securities, net of tax	367	(690)	1,830	(174)
Other comprehensive income (loss)	367	(690)	1,830	(174)
Comprehensive income	$ 23,850	$ 25,421	$ 43,403	$ 61,532

Condensed Consolidated Stateme6

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income	$ 41,573	$ 61,706
Adjustments to reconcile net income to net cash from operating activities:
Depreciation of property and equipment	810	823
Amortization of intangible assets	12,074	9,386
Stock-based compensation expense	7,568	5,571
Deferred income tax and other, net	8,858	7,199
Excess tax benefit from stock based compensation	0	(714)
Changes in operating assets and liabilities:
Accounts receivable, net	163	(2,492)
Other assets	4,321	(2,751)
Accounts payable	131	(2,411)
Accrued legal fees	2,595	357
Accrued and other liabilities	(1,231)	(6,897)
Deferred revenue	(4,088)	78
Net cash from operating activities	72,774	69,855
Cash flows from investing activities:
Purchases of property and equipment	(2,487)	(503)
Purchases of short-term available-for-sale investments	(77,612)	(243,606)
Proceeds from maturities and sales of short-term investments	108,467	216,469
Purchases of intangible assets	0	(2,950)
Net cash from investing activities	28,368	(30,590)
Cash flows from financing activities:
Dividend paid	(19,747)	(21,033)
Excess tax benefit from stock-based compensation	0	714
Proceeds from exercise of stock options	2,208	8,018
Proceeds from employee stock purchase program	1,081	886
Repurchase of common stock	(63,856)	(57,346)
Net cash from financing activities	(80,314)	(68,761)
Net changes in cash and cash equivalents	20,828	(29,496)
Cash and cash equivalents at beginning of period	22,599	50,908
Cash and cash equivalents at end of period	$ 43,427	$ 21,412

The Company And Basis Of Presen

The Company And Basis Of Presentation	6 Months Ended
	Jun. 30, 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, bonding, 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, biometrics, and image stabilization intellectual property. The accompanying interim unaudited condensed consolidated financial statements as of June 30, 2016 and 2015, and for the three and six 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 and six months ended June 30, 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	6 Months Ended
	Jun. 30, 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 six months ended June 30, 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”), and since May 2014 the FASB has issued amendments to this new guidance, which collectively provides guidance for revenue recognition. 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. Under the new standard, the current practice of many licensing companies of reporting revenues from per-unit royalty based agreements one quarter in arrears would no longer be accepted and instead companies will be expected to estimate royalty-based revenues. The Company is still considering how the guidance will 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	6 Months Ended
	Jun. 30, 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): June 30, 2016 December 31, 2015 Prepaid income taxes $ 18,943 $ 22,890 Interest receivable 2,024 2,427 Other 3,162 2,813 $ 24,129 $ 28,130 Accrued liabilities consisted of the following (in thousands): June 30, 2016 December 31, 2015 Employee compensation and benefits $ 5,605 $ 6,848 Other 3,426 3,414 $ 9,031 $ 10,262 Accumulated other comprehensive income (loss) consisted of the following (in thousands): June 30, 2016 December 31, 2015 Unrealized gains (losses) on available-for-sale securities, net of tax $ 393 $ (1,437 ) $ 393 $ (1,437 )

Financial Instruments

Financial Instruments	6 Months Ended
	Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Financial Instruments	FINANCIAL INSTRUMENTS The following is a summary of marketable securities at June 30, 2016 and December 31, 2015 (in thousands): June 30, 2016 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Available-for-sale securities Corporate bonds and notes $ 208,903 $ 530 $ (54 ) $ 209,379 Municipal bonds and notes 73,694 116 (1 ) 73,809 Commercial paper 11,603 3 (6 ) 11,600 Treasury and agency notes and bills 33,528 18 (3 ) 33,543 Money market funds 2,679 — — 2,679 Total available-for-sale securities $ 330,407 $ 667 $ (64 ) $ 331,010 Reported in: Cash and cash equivalents $ 2,679 Short-term investments 328,331 Total marketable securities $ 331,010 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 June 30, 2016 and December 31, 2015 , the Company had $371.8 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 $40.7 million and $21.9 million at June 30, 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 and six months ended June 30, 2016 and 2015 . Unrealized gains and unrealized losses were $0.4 million and $0.1 million , respectively, net of tax, as of June 30, 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 June 30, 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 six months ended June 30, 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 June 30, 2016 and December 31, 2015, which have been in a continuous unrealized loss position, aggregated by investment category and length of time (in thousands): June 30, 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 $ 26,269 $ (7 ) $ 38,455 $ (47 ) $ 64,724 $ (54 ) Treasury and agency notes and bills 7,522 (3 ) — — 7,522 (3 ) Municipal bonds and notes 2,654 (1 ) — — 2,654 (1 ) Commercial paper 8,940 (6 ) — — 8,940 (6 ) Total $ 45,385 $ (17 ) $ 38,455 $ (47 ) $ 83,840 $ (64 ) December 31, 2015 Less Than 12 Months 12 Months or More Total Fair Value Gross Fair Gross Fair Value Gross 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 June 30, 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 $ 149,201 Due in one to two years 119,657 Due in two to three years 59,473 Total $ 328,331

Fair Value

Fair Value	6 Months Ended
	Jun. 30, 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 June 30, 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 June 30, 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) $ 2,679 $ 2,679 $ — $ — Corporate bonds and notes (2) 209,379 — 209,379 — Municipal bonds and notes (2) 73,809 — 73,809 — Treasury and agency notes and bills (2) 33,543 — 33,543 — Commercial paper (3) 11,600 — 11,600 — Total Assets $ 331,010 $ 2,679 $ 328,331 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at June 30, 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.

Identified Intangible Assets

Identified Intangible Assets	6 Months Ended
	Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Identified Intangible Assets	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 June 30, 2016 and December 31, 2015, respectively, and is included in other assets on our Condensed Consolidated Balance Sheets. Identified intangible assets consisted of the following (in thousands): June 30, 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 $ (87,992 ) $ 52,353 $ 140,345 $ (79,128 ) $ 61,217 Existing technology 5-10 50,620 (22,433 ) 28,187 50,620 (20,182 ) 30,438 Customer contracts 3-9 10,200 (8,669 ) 1,531 10,200 (7,792 ) 2,408 Trade name 4-10 1,600 (656 ) 944 1,600 (574 ) 1,026 $ 202,765 $ (119,750 ) $ 83,015 $ 202,765 $ (107,676 ) $ 95,089 Amortization expense for the three months ended June 30, 2016 and 2015 amounted to $6.1 million and $4.7 million , respectively. Amortization expense for the six months ended June 30, 2016 and 2015 amounted to $12.1 million and $9.4 million , respectively. As of June 30, 2016 , the estimated future amortization expense of intangible assets is as follows (in thousands): 2016 (remaining 6 months) $ 12,104 2017 21,715 2018 19,359 2019 10,926 2020 6,777 Thereafter 12,134 $ 83,015

Net Income Per Share

Net Income Per Share	6 Months Ended
	Jun. 30, 2016
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	NET INCOME 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 and six months ended June 30, 2016 and 2015. The following table sets forth the computation of basic and diluted shares (in thousands): Three Months Ended Six Months Ended June 30, 2016 June 30, 2015 June 30, June 30, Denominator: Weighted average common shares outstanding 48,853 52,333 49,412 52,435 Less: Unvested common shares subject to repurchase (17 ) (40 ) (20 ) (48 ) Total common shares-basic 48,836 52,293 49,392 52,387 Effect of dilutive securities: Stock awards 234 348 222 398 Restricted stock awards and units 350 411 379 480 Total common shares-diluted 49,420 53,052 49,993 53,265 Basic net income 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 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 and six months ended June 30, 2016, in the calculation of net income per share, 0.4 million and 0.1 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. For the three and six months ended June 30, 2015, in the calculation of net income per share, 0.8 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	6 Months Ended
	Jun. 30, 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 June 30, 2016, the Company has repurchased a total of approximately 10,304,000 shares of common stock, since inception of the plan, at an average price of $27.74 per share for a total cost of $ 285.8 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 June 30, 2016, the total remaining amount available for repurchase was $164.2 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 June 30, 2016 , there were approximately 3.3 million shares reserved for future grants 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 (117 ) $18.91 Options canceled / forfeited / expired (10 ) $19.20 Balance at June 30, 2016 1,016 $20.84 Restricted Stock Awards and Units Information with respect to outstanding restricted stock awards and units as of June 30, 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 529 82 611 $ 30.14 Awards and units vested / earned (171 ) (84 ) (255 ) $ 30.78 Awards and units canceled / forfeited (15 ) (75 ) (90 ) $ 24.54 Balance at June 30, 2016 1,033 442 1,475 $ 29.68 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 June 30, 2016 , there were approximately 447,000 shares reserved for grant under 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	6 Months Ended
	Jun. 30, 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 and six months ended June 30, 2016 and 2015 is as follows (in thousands): Three Months Ended Six Months Ended June 30, 2016 June 30, 2015 June 30, 2016 June 30, 2015 Research, development and other related costs $ 1,487 $ 1,006 $ 2,870 $ 1,696 Selling, general and administrative 2,441 2,558 4,698 3,875 Total stock-based compensation expense 3,928 3,564 $ 7,568 $ 5,571 Stock-based compensation expense categorized by various equity components for the three and six months ended June 30, 2016 and 2015 is summarized in the table below (in thousands): Three Months Ended Six Months Ended June 30, 2016 June 30, 2015 June 30, 2016 June 30, 2015 Employee stock options $ 501 $ 620 $ 1,010 $ 1,506 Restricted stock awards and units 3,220 2,786 6,152 3,760 Employee stock purchase plan 207 158 406 305 Total stock-based compensation expense $ 3,928 $ 3,564 $ 7,568 $ 5,571 The following assumptions were used to value the options granted: Three Months Ended Six Months Ended June 30, 2016 June 30, 2015 June 30, 2016 June 30, 2015 Expected life (in years) * 3.8 * 3.8 Risk-free interest rate * 1.1 % * 1.1-1.4% Dividend yield * 2.1 % * 2.1 -2.9% Expected volatility * 35.6 % * 35.5 - 35.6% * There were no options granted in the three and six months ended June 30, 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	6 Months Ended
	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The provision for income taxes for the three months and six months ended June 30, 2016 was $11.5 million and $20.3 million , respectively. The provision for income taxes for the three months and six months ended June 30, 2016 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 and six months ended June 30, 2015 was $11.8 million and $29.1 million . The provision for income taxes for the three months and six months ended June 30, 2015 was primarily related to foreign withholding taxes and tax liability generated from U.S. and foreign operations. The decrease in the provision for income taxes for the six months ended June 30, 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. 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. As of June 30, 2016, unrecognized tax benefits were $3.2 million , 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 the relevant statute of limitations. 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 and six months ended June 30, 2016, the Company recognized an insignificant amount of interest and penalties related to unrecognized tax benefits. As of June 30, 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 June 30, 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	6 Months Ended
	Jun. 30, 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 June 30, 2016 and 2015 amounted to $0.5 million . Rent expense for the six months ended June 30, 2016 and 2015 amounted to $1.1 million and $1.0 million , respectively. As of June 30, 2016 , future minimum lease payments are as follows (in thousands): Lease Obligations 2016 (remaining 6 months) $ 1,355 2017 2,586 2018 2,661 2019 2,517 2020 2,144 Thereafter 274 $ 11,537 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	6 Months Ended
	Jun. 30, 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, Six Months Ended, June 30, 2016 June 30, 2015 June 30, 2016 June 30, 2015 Taiwan $ 13,192 20 % $ 7,833 12 % $ 20,391 16 % $ 42,615 30 % U.S. 26,148 39 25,263 39 54,809 43 50,793 35 Korea 23,600 35 23,858 37 37,421 30 39,224 27 Other 4,080 6 7,234 12 14,376 11 11,406 8 $ 67,020 100 % $ 64,188 100 % $ 126,997 100 % $ 144,038 100 % For the three months ended June 30, 2016 and 2015, there were four customers in each period that each accounted for 10% or more of total revenues. For the six months ended June 30, 2016 and 2015, there were three and four customers, respectively, that each accounted for 10% or more of total revenues.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2016
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS Dividend Payment On July 25, 2016, the Board declared a cash dividend of $0.20 per share of common stock, payable on September 12, 2016 for the stockholders of record at the close of business on August 22, 2016.

Summary Of Significant Accoun20

Summary Of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2016
Accounting Policies [Abstract]
Basis of Accounting	The accompanying interim unaudited condensed consolidated financial statements as of June 30, 2016 and 2015, and for the three and six 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”), and since May 2014 the FASB has issued amendments to this new guidance, which collectively provides guidance for revenue recognition. 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. Under the new standard, the current practice of many licensing companies of reporting revenues from per-unit royalty based agreements one quarter in arrears would no longer be accepted and instead companies will be expected to estimate royalty-based revenues. The Company is still considering how the guidance will 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.
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.

Composition Of Certain Financ21

Composition Of Certain Financial Statement Captions (Tables)	6 Months Ended
	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Other Current Assets	Other current assets consisted of the following (in thousands): June 30, 2016 December 31, 2015 Prepaid income taxes $ 18,943 $ 22,890 Interest receivable 2,024 2,427 Other 3,162 2,813 $ 24,129 $ 28,130
Accrued Liabilities	Accrued liabilities consisted of the following (in thousands): June 30, 2016 December 31, 2015 Employee compensation and benefits $ 5,605 $ 6,848 Other 3,426 3,414 $ 9,031 $ 10,262
Accumulated Other Comprehensive Income (Loss)	Accumulated other comprehensive income (loss) consisted of the following (in thousands): June 30, 2016 December 31, 2015 Unrealized gains (losses) on available-for-sale securities, net of tax $ 393 $ (1,437 ) $ 393 $ (1,437 )

Financial Instruments (Tables)

Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Summary of Marketable Securities	The following is a summary of marketable securities at June 30, 2016 and December 31, 2015 (in thousands): June 30, 2016 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Available-for-sale securities Corporate bonds and notes $ 208,903 $ 530 $ (54 ) $ 209,379 Municipal bonds and notes 73,694 116 (1 ) 73,809 Commercial paper 11,603 3 (6 ) 11,600 Treasury and agency notes and bills 33,528 18 (3 ) 33,543 Money market funds 2,679 — — 2,679 Total available-for-sale securities $ 330,407 $ 667 $ (64 ) $ 331,010 Reported in: Cash and cash equivalents $ 2,679 Short-term investments 328,331 Total marketable securities $ 331,010 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 June 30, 2016 and December 31, 2015, which have been in a continuous unrealized loss position, aggregated by investment category and length of time (in thousands): June 30, 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 $ 26,269 $ (7 ) $ 38,455 $ (47 ) $ 64,724 $ (54 ) Treasury and agency notes and bills 7,522 (3 ) — — 7,522 (3 ) Municipal bonds and notes 2,654 (1 ) — — 2,654 (1 ) Commercial paper 8,940 (6 ) — — 8,940 (6 ) Total $ 45,385 $ (17 ) $ 38,455 $ (47 ) $ 83,840 $ (64 ) December 31, 2015 Less Than 12 Months 12 Months or More Total Fair Value Gross Fair Gross Fair Value Gross 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 June 30, 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 $ 149,201 Due in one to two years 119,657 Due in two to three years 59,473 Total $ 328,331

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Jun. 30, 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 June 30, 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) $ 2,679 $ 2,679 $ — $ — Corporate bonds and notes (2) 209,379 — 209,379 — Municipal bonds and notes (2) 73,809 — 73,809 — Treasury and agency notes and bills (2) 33,543 — 33,543 — Commercial paper (3) 11,600 — 11,600 — Total Assets $ 331,010 $ 2,679 $ 328,331 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at June 30, 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.

Identified Intangible Assets (T

Identified Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Identified Intangible Assets	Identified intangible assets consisted of the following (in thousands): June 30, 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 $ (87,992 ) $ 52,353 $ 140,345 $ (79,128 ) $ 61,217 Existing technology 5-10 50,620 (22,433 ) 28,187 50,620 (20,182 ) 30,438 Customer contracts 3-9 10,200 (8,669 ) 1,531 10,200 (7,792 ) 2,408 Trade name 4-10 1,600 (656 ) 944 1,600 (574 ) 1,026 $ 202,765 $ (119,750 ) $ 83,015 $ 202,765 $ (107,676 ) $ 95,089
Estimated Future Amortization Expense	As of June 30, 2016 , the estimated future amortization expense of intangible assets is as follows (in thousands): 2016 (remaining 6 months) $ 12,104 2017 21,715 2018 19,359 2019 10,926 2020 6,777 Thereafter 12,134 $ 83,015

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	6 Months Ended
	Jun. 30, 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 Six Months Ended June 30, 2016 June 30, 2015 June 30, June 30, Denominator: Weighted average common shares outstanding 48,853 52,333 49,412 52,435 Less: Unvested common shares subject to repurchase (17 ) (40 ) (20 ) (48 ) Total common shares-basic 48,836 52,293 49,392 52,387 Effect of dilutive securities: Stock awards 234 348 222 398 Restricted stock awards and units 350 411 379 480 Total common shares-diluted 49,420 53,052 49,993 53,265

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 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 (117 ) $18.91 Options canceled / forfeited / expired (10 ) $19.20 Balance at June 30, 2016 1,016 $20.84
Summary of Restricted Stock Awards and Units	Information with respect to outstanding restricted stock awards and units as of June 30, 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 529 82 611 $ 30.14 Awards and units vested / earned (171 ) (84 ) (255 ) $ 30.78 Awards and units canceled / forfeited (15 ) (75 ) (90 ) $ 24.54 Balance at June 30, 2016 1,033 442 1,475 $ 29.68

Stock-Based Compensation Expe27

Stock-Based Compensation Expense (Tables)	6 Months Ended
	Jun. 30, 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 and six months ended June 30, 2016 and 2015 is as follows (in thousands): Three Months Ended Six Months Ended June 30, 2016 June 30, 2015 June 30, 2016 June 30, 2015 Research, development and other related costs $ 1,487 $ 1,006 $ 2,870 $ 1,696 Selling, general and administrative 2,441 2,558 4,698 3,875 Total stock-based compensation expense 3,928 3,564 $ 7,568 $ 5,571
Stock-Based Compensation Expense Categorized by Equity Components	Stock-based compensation expense categorized by various equity components for the three and six months ended June 30, 2016 and 2015 is summarized in the table below (in thousands): Three Months Ended Six Months Ended June 30, 2016 June 30, 2015 June 30, 2016 June 30, 2015 Employee stock options $ 501 $ 620 $ 1,010 $ 1,506 Restricted stock awards and units 3,220 2,786 6,152 3,760 Employee stock purchase plan 207 158 406 305 Total stock-based compensation expense $ 3,928 $ 3,564 $ 7,568 $ 5,571
Schedule of Assumptions Used To Value Options Granted	The following assumptions were used to value the options granted: Three Months Ended Six Months Ended June 30, 2016 June 30, 2015 June 30, 2016 June 30, 2015 Expected life (in years) * 3.8 * 3.8 Risk-free interest rate * 1.1 % * 1.1-1.4% Dividend yield * 2.1 % * 2.1 -2.9% Expected volatility * 35.6 % * 35.5 - 35.6% * There were no options granted in the three and six months ended June 30, 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)	6 Months Ended
	Jun. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Lease Payments and Purchase Obligations	As of June 30, 2016 , future minimum lease payments are as follows (in thousands): Lease Obligations 2016 (remaining 6 months) $ 1,355 2017 2,586 2018 2,661 2019 2,517 2020 2,144 Thereafter 274 $ 11,537

Segment And Geographic Inform29

Segment And Geographic Information (Tables)	6 Months Ended
	Jun. 30, 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, Six Months Ended, June 30, 2016 June 30, 2015 June 30, 2016 June 30, 2015 Taiwan $ 13,192 20 % $ 7,833 12 % $ 20,391 16 % $ 42,615 30 % U.S. 26,148 39 25,263 39 54,809 43 50,793 35 Korea 23,600 35 23,858 37 37,421 30 39,224 27 Other 4,080 6 7,234 12 14,376 11 11,406 8 $ 67,020 100 % $ 64,188 100 % $ 126,997 100 % $ 144,038 100 %

Composition Of Certain Financ30

Composition Of Certain Financial Statement Captions - Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid income taxes	$ 18,943	$ 22,890
Interest receivable	2,024	2,427
Other	3,162	2,813
Other current assets, total	$ 24,129	$ 28,130

Composition Of Certain Financ31

Composition Of Certain Financial Statement Captions - Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Employee compensation and benefits	$ 5,605	$ 6,848
Other	3,426	3,414
Accrued liabilities, total	$ 9,031	$ 10,262

Composition Of Certain Financ32

Composition Of Certain Financial Statement Captions - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Unrealized gains (losses) on available-for-sale securities, net of tax	$ 393	$ (1,437)
Accumulated other comprehensive income (loss)	$ 393	$ (1,437)

Financial Instruments - Summary

Financial Instruments - Summary of Marketable Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	$ 330,407	$ 361,298
Available-for-sale securities, Gross Unrealized Gains	667	22
Available-for-sale securities, Gross Unrealized Losses	(64)	(1,460)
Estimated Fair Values	331,010	359,860
Corporate bonds and notes
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	208,903	257,461
Available-for-sale securities, Gross Unrealized Gains	530	7
Available-for-sale securities, Gross Unrealized Losses	(54)	(1,286)
Estimated Fair Values	209,379	256,182
Municipal bonds and notes
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	73,694	70,772
Available-for-sale securities, Gross Unrealized Gains	116	12
Available-for-sale securities, Gross Unrealized Losses	(1)	(81)
Estimated Fair Values	73,809	70,703
Commercial paper
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	11,603	5,377
Available-for-sale securities, Gross Unrealized Gains	3	3
Available-for-sale securities, Gross Unrealized Losses	(6)	0
Estimated Fair Values	11,600	5,380
Treasury and agency notes and bills
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	33,528	26,973
Available-for-sale securities, Gross Unrealized Gains	18	0
Available-for-sale securities, Gross Unrealized Losses	(3)	(93)
Estimated Fair Values	33,543	26,880
Money market funds
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	2,679	715
Available-for-sale securities, Gross Unrealized Gains	0	0
Available-for-sale securities, Gross Unrealized Losses	0	0
Estimated Fair Values	2,679	715
Cash and cash equivalents
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Values	2,679	715
Short-term investments
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Values	$ 328,331	$ 359,145

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Schedule of Investments [Line Items]
Cash, cash equivalents and short-term investments	$ 371.8	$ 381.7
Unrealized loss, net	0.4
Unrealized gain, net	0.1
Operating accounts
Schedule of Investments [Line Items]
Cash, cash equivalents and short-term investments	$ 40.7	$ 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	Jun. 30, 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	$ 45,385	$ 271,347
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(17)	(1,336)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	38,455	70,447
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(47)	(124)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	83,840	341,794
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(64)	(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	26,269	183,491
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(7)	(1,162)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	38,455	70,447
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(47)	(124)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	64,724	253,938
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(54)	(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	7,522	26,880
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(3)	(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	7,522	26,880
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(3)	(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	2,654	60,976
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(1)	(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	2,654	60,976
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(1)	$ (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	8,940
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(6)
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	8,940
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	$ (6)

Financial Instruments - Estimat

Financial Instruments - Estimated Fair Value of Marketable Securities by Contractual Maturity (Detail) $ in Thousands	Jun. 30, 2016USD ($)
Investments, Debt and Equity Securities [Abstract]
Due in one year or less	$ 149,201
Due in one to two years	119,657
Due in two to three years	59,473
Estimated Fair Values	$ 328,331

Fair Value - Assets Required to

Fair Value - Assets Required to be Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 331,010	$ 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	2,679	715
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	328,331	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	2,679	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	2,679	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	209,379	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	209,379	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	73,809	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	73,809	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	33,543	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	33,543	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	11,600	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	11,600	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

Identified Intangible Assets -

Identified Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 10,100		$ 10,100		$ 10,100
Amortization expense	$ 6,052	$ 4,691	$ 12,074	$ 9,386

Identified Intangible Assets 39

Identified Intangible Assets - Identified Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Assets	$ 202,765	$ 202,765
Accumulated Amortization	(119,750)	(107,676)
Net	83,015	95,089
Acquired Patents Core Technology
Finite-Lived Intangible Assets [Line Items]
Gross Assets	140,345	140,345
Accumulated Amortization	(87,992)	(79,128)
Net	$ 52,353	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	(22,433)	(20,182)
Net	$ 28,187	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	(8,669)	(7,792)
Net	$ 1,531	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 name
Finite-Lived Intangible Assets [Line Items]
Gross Assets	$ 1,600	1,600
Accumulated Amortization	(656)	(574)
Net	$ 944	$ 1,026
Trade name | Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	4 years
Trade name | Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)	10 years

Identified Intangible Assets 40

Identified Intangible Assets - Estimated Future Amortization Expense of Intangible Assets, Excluding the In-Process Research and Development (Detail) $ in Thousands	Jun. 30, 2016USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2016 (remaining 6 months)	$ 12,104
2,017	21,715
2,018	19,359
2,019	10,926
2,020	6,777
Thereafter	12,134
Finite-lived intangible assets, net	$ 83,015

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		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Denominator:
Weighted average common shares outstanding (in shares)	48,853	52,333	49,412	52,435
Less: Unvested common shares subject to repurchase (in shares)	(17)	(40)	(20)	(48)
Total common shares-basic (in shares)	48,836	52,293	49,392	52,387
Effect of dilutive securities:
Stock awards (in shares)	234	348	222	398
Restricted stock awards and units (in shares)	350	411	379	480
Total common shares-diluted (in shares)	49,420	53,052	49,993	53,265

Net Income (Loss) Per Share - A

Net Income (Loss) Per Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Shares of common stock excluded from the computation of net loss per share	0.4	0.8	0.1	1.1

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended	101 Months Ended	107 Months Ended
	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2016
Schedule of Trading Securities and Other Trading Assets [Line Items]
Treasury stock, total repurchase during period (in shares)		8,234,000	10,304,000
Treasury stock, average price of share repurchased (in dollars per share)		$ 27.22	$ 27.74
Treasury stock, total cost of repurchased stock		$ 224.1	$ 285.8
Stock repurchase program, remaining amount available for repurchase	$ 164.2		$ 164.2
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	447,000		447,000
2003 Plan | Employee Stock Option
Schedule of Trading Securities and Other Trading Assets [Line Items]
Shares reserved for grant	3,300,000		3,300,000

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Stock Option Activity (Detail) - $ / shares	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares, Beginning balance (shares)		1,143,000
Number of Shares, Options granted (shares)	0	0
Number of Shares, Options exercised (shares)		(117,000)
Number of Shares, Options cancelled / forfeited / expired (shares)		(10,000)
Number of Shares, Ending balance (shares)	1,016,000	1,016,000
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)		$ 20.63
Weighted Average Exercise Price Per Share, Options granted (usd per share)		0
Weighted Average Exercise Price Per Share, Options exercised (usd per share)		18.91
Weighted Average Exercise Price Per Share, Options cancelled / forfeited / expired (usd per share)		19.20
Weighted Average Exercise Price Per Share, Ending balance (usd per share)	$ 20.84	$ 20.84

Stockholders' Equity - Summar45

Stockholders' Equity - Summary of Restricted Stock Awards and Units (Detail) - Restricted Stock shares in Thousands	6 Months Ended
	Jun. 30, 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)	611
Restricted stock awards and units, vested / earned (shares)	(255)
Restricted stock awards and units, cancelled / forfeited (shares)	(90)
Restricted stock awards and units, ending balance (shares)	1,475
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	30.14
Weighted average grant date fair value per share of restricted stock and units, vested / earned (usd per share) | $ / shares	30.78
Weighted average grant date fair value of restricted stock and units, cancelled / forfeited (usd per share) | $ / shares	24.54
Weighted average grant date fair value per share of restricted stock and units, ending balance (usd per share) | $ / shares	$ 29.68
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)	529
Restricted stock awards and units, vested / earned (shares)	(171)
Restricted stock awards and units, cancelled / forfeited (shares)	(15)
Restricted stock awards and units, ending balance (shares)	1,033
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)	82
Restricted stock awards and units, vested / earned (shares)	(84)
Restricted stock awards and units, cancelled / forfeited (shares)	(75)
Restricted stock awards and units, ending balance (shares)	442

Stock-Based Compensation Expe46

Stock-Based Compensation Expense - Effect of Recording Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 3,928	$ 3,564	$ 7,568	$ 5,571
Research, development and other related costs
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	1,487	1,006	2,870	1,696
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 2,441	$ 2,558	$ 4,698	$ 3,875

Stock-Based Compensation Expe47

Stock-Based Compensation Expense - Categorized by Equity Components (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 3,928	$ 3,564	$ 7,568	$ 5,571
Employee stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	501	620	1,010	1,506
Restricted stock awards and units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	3,220	2,786	6,152	3,760
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 207	$ 158	$ 406	$ 305

Stock-Based Compensation Expe48

Stock-Based Compensation Expense - Schedule of Assumptions Used to Value Options Granted (Detail) - shares	1 Months Ended		3 Months Ended		6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Number of shares, options granted (shares)			0		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		3 years 9 months 24 days
Risk-free interest rate				1.10%
Dividend yield				2.10%
Expected volatility				35.60%
Employee Stock Option | Minimum
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate						1.10%
Dividend yield						2.10%
Expected volatility						35.50%
Employee Stock Option | Maximum
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate						1.40%
Dividend yield						2.90%
Expected volatility						35.60%
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		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Provision for (benefit from) income taxes	$ 11,471	$ 11,828	$ 20,343	$ 29,052
Unrecognized tax benefits	3,200		3,200		$ 3,100
Unrecognized tax benefits that would impact the effective income tax rate	$ 2,400		2,400		2,400
Expected reduction resulting from lapse of applicable statute of limitations			300
Interest and tax penalties related to unrecognized tax benefits			$ 600		$ 500

Commitments And Contingencies -

Commitments And Contingencies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Rent under operating lease agreement	$ 500	$ 500	$ 1,100	$ 1,000
2016 (remaining 6 months)	1,355		1,355
2,017	2,586		2,586
2,018	2,661		2,661
2,019	2,517		2,517
2,020	2,144		2,144
Thereafter	274		274
Lease Obligations, Total	$ 11,537		$ 11,537

Segment And Geographic Inform51

Segment And Geographic Information - Schedule of Geographic Revenue Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016USD ($)	Jun. 30, 2015USD ($)customer	Jun. 30, 2016USD ($)customersegment	Jun. 30, 2015USD ($)customer
Segment Reporting [Abstract]
Number of operating segments | segment			1
Number of major customers each accounting for 10% or more of total revenues | customer		4	3	4
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 67,020	$ 64,188	$ 126,997	$ 144,038
Percentage of revenue	100.00%	100.00%	100.00%	100.00%
Taiwan
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 13,192	$ 7,833	$ 20,391	$ 42,615
Percentage of revenue	20.00%	12.00%	16.00%	30.00%
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 26,148	$ 25,263	$ 54,809	$ 50,793
Percentage of revenue	39.00%	39.00%	43.00%	35.00%
Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 23,600	$ 23,858	$ 37,421	$ 39,224
Percentage of revenue	35.00%	37.00%	30.00%	27.00%
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 4,080	$ 7,234	$ 14,376	$ 11,406
Percentage of revenue	6.00%	12.00%	11.00%	8.00%

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - $ / shares	Jul. 25, 2016	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Subsequent Event [Line Items]
Cash dividends declared per share (in dollars per share)		$ 0.20	$ 0.20	$ 0.40	$ 0.40
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared per share (in dollars per share)	$ 0.20