Tessera (TSRA) 10-Q 5 Aug 15 2015 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 24, 2015
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, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		52,117,405

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 21,412	$ 50,908
Short-term investments	410,481	383,513
Accounts receivable, net	6,970	4,478
Current deferred tax assets	20,586	19,334
Other current assets	20,218	17,277
Total current assets	479,667	475,510
Intangible assets, net	66,489	72,925
Long-term deferred tax assets	13,303	21,759
Other assets	6,419	6,929
Total assets	565,878	577,123
Current liabilities:
Accounts payable	1,364	3,509
Accrued legal fees	4,797	4,143
Accrued liabilities	7,815	16,157
Deferred revenue	10,295	10,217
Total current liabilities	24,271	34,026
Long-term deferred tax and other liabilities	$ 1,906	$ 1,738
Commitments and contingencies (Note 12)
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; 58,527 and 57,800 shares issued, respectively, and 52,115 and 52,840 shares outstanding, respectively	58	58
Additional paid-in capital	591,530	576,341
Treasury stock at cost; 6,412 and 4,960 shares of common stock at each period end, respectively	(163,577)	(106,231)
Accumulated other comprehensive loss	(507)	(333)
Retained earnings	112,197	71,524
Total stockholders’ equity	539,701	541,359
Total liabilities and stockholders’ equity	$ 565,878	$ 577,123

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Thousands	Jun. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000	10,000
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	150,000
Common stock, shares issued	58,527	57,800
Common stock, shares outstanding	52,115	52,840
Treasury stock, shares	6,412	4,960

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues:
Royalty and license fees	$ 64,188	$ 37,213	$ 144,038	$ 125,549
Total revenues	64,188	37,213	144,038	125,549
Operating expenses:
Cost of revenues	166	95	308	103
Research, development and other related costs	7,866	8,958	15,234	16,490
Selling, general and administrative	11,119	11,928	22,116	24,350
Amortization expense	4,691	4,570	9,386	9,173
Litigation expense	3,519	10,214	8,023	17,165
Restructuring, impairment of long-lived assets and other charges	0	488	0	1,527
Total operating expenses	27,361	36,253	55,067	68,808
Operating income	36,827	960	88,971	56,741
Other income and expense, net	770	432	1,418	762
Income before taxes from continuing operations	37,597	1,392	90,389	57,503
Provision for (benefit from) income taxes	11,828	(1,124)	29,052	21,562
Income from continuing operations	25,769	2,516	61,337	35,941
Income (loss) from discontinued operations, net of tax	342	1,255	369	(11,272)
Net income	$ 26,111	$ 3,771	$ 61,706	$ 24,669
Income from continuing operations:
Basic (in dollars per share)	$ 0.49	$ 0.05	$ 1.17	$ 0.68
Diluted (in dollars per share)	0.49	0.05	1.15	0.67
Income (loss) from discontinued operations:
Basic (in dollars per share)	0.01	0.02	0.01	(0.21)
Diluted (in dollars per share)	0.01	0.02	0.01	(0.21)
Net income:
Basic (in dollars per share)	0.50	0.07	1.18	0.47
Diluted (in dollars per share)	0.49	0.07	1.16	0.46
Cash dividends declared per share (in dollars per share)	$ 0.20	$ 0.62	$ 0.40	$ 0.72
Weighted average number of shares used in per share calculations-basic	52,293	52,812	52,387	53,016
Weighted average number of shares used in per share calculations-diluted	53,052	53,397	53,265	53,610

Condensed Consolidated Stateme5

Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 26,111	$ 3,771	$ 61,706	$ 24,669
Other comprehensive income (loss):
Net unrealized gains (losses) on available-for- sale securities, net of tax	(690)	42	(174)	(41)
Other comprehensive income (loss)	(690)	42	(174)	(41)
Comprehensive income	$ 25,421	$ 3,813	$ 61,532	$ 24,628

Condensed Consolidated Stateme6

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 61,706	$ 24,669
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization of property and equipment	823	1,011
Amortization of intangible assets	9,386	9,174
Stock-based compensation expense	5,571	6,415
Non-cash restructuring, impairment of long-lived assets and other charges	0	820
Deferred income tax and other, net	7,199	(1,944)
Excess tax benefit from stock based compensation	(714)	135
Patents received through settlement agreements	0	(1,591)
Changes in operating assets and liabilities:
Accounts receivable, net	(2,492)	(249)
Other assets	(2,751)	3,324
Accounts payable	(2,411)	(2,123)
Accrued legal fees	357	3,220
Accrued and other liabilities	(6,897)	393
Deferred revenue	78	(28)
Net cash from operating activities	69,855	43,226
Cash flows from investing activities:
Purchases of property and equipment	(503)	(1,143)
Purchases of short-term available-for-sale investments	(243,606)	(134,068)
Proceeds from maturities and sales of short-term investments	216,469	122,287
Purchases of intangible assets	(2,950)	(5,100)
Net cash from investing activities	(30,590)	(18,024)
Cash flows from financing activities:
Dividend paid	(21,033)	(37,766)
Excess tax benefit from stock-based compensation	714	0
Proceeds from exercise of stock options	8,018	14,711
Proceeds from employee stock purchase program	886	1,103
Repurchase of common stock	(57,346)	(45,334)
Net cash from financing activities	(68,761)	(67,286)
Net decrease in cash and cash equivalents	(29,496)	(42,084)
Cash and cash equivalents at beginning of period	50,908	73,722
Cash and cash equivalents at end of period	$ 21,412	$ 31,638

The Company And Basis Of Presen

The Company And Basis Of Presentation	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company And Basis Of Presentation	THE COMPANY AND BASIS OF PRESENTATION Tessera Technologies, Inc. and its subsidiaries (the “Company”) generate revenue from licensing its technologies and intellectual property to customers and others who implement it for use in areas such as mobile computing and communications, memory and data storage, and 3-D Integrated Circuit (“3DIC”) technologies, among others. The Company's technologies include semiconductor packaging and interconnect solutions, and products and solutions for mobile and computational imaging, including our FaceTools TM , FacePower TM , FotoSavvy TM , DigitalAperture TM , 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 June 30, 2015 and 2014, 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, 2014 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, 2014, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, filed on February 25, 2015 (the “Form 10-K”). The results of operations for the three and six months ended June 30, 2015 are not necessarily indicative of the results that may be expected for the full year ended December 31, 2015 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. The most significant of these reclassifications are as follows: • Amortization expense is now shown separately on the Condensed Consolidated Statements of Operations. • Certain balance sheet items from 2014 have been grouped together to conform with current periods presented.

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2015
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, 2015, as compared to the significant accounting policies described in the Form 10-K. Recent 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 are effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. Early adoption is permitted. Entities may apply the amendments in ASU 2014-12 either: (a) prospectively to all awards granted or modified after the effective date; or (b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. The adoption of ASU 2014-12 is not expected to have a material effect on the Company’s unaudited condensed consolidated financial statements or disclosures. 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 is still under review by the FASB based on exposure drafts. Therefore, the Company is still considering how the guidance might affect its financial reporting once finalized.

Composition Of Certain Financia

Composition Of Certain Financial Statement Captions	6 Months Ended
	Jun. 30, 2015
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, 2015 December 31, 2014 Prepaid income taxes $ 14,925 $ 12,841 Interest receivable 2,566 2,138 Other 2,727 2,298 $ 20,218 $ 17,277 Accrued liabilities consisted of the following (in thousands): June 30, 2015 December 31, 2014 Employee compensation and benefits $ 5,401 $ 10,734 Other 2,414 5,423 $ 7,815 $ 16,157 Accumulated other comprehensive income (loss) consisted of the following (in thousands): June 30, 2015 December 31, 2014 Unrealized gains (loss) on available-for-sale securities, net of tax $ (507 ) $ (333 ) $ (507 ) $ (333 )

Financial Instruments

Financial Instruments	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Financial Instruments	FINANCIAL INSTRUMENTS The following is a summary of marketable securities at June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Available-for-sale securities Corporate bonds and notes $ 311,108 $ 81 $ (513 ) $ 310,676 Municipal bonds and notes 73,590 13 (96 ) 73,507 Commercial paper 9,389 3 — 9,392 Treasury and agency notes and bills 19,202 10 (6 ) 19,206 Money market funds 2,296 — — 2,296 Total available-for-sale securities $ 415,585 $ 107 $ (615 ) $ 415,077 Reported in: Cash and cash equivalents $ 4,596 Short-term investments 410,481 Total marketable securities $ 415,077 December 31, 2014 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Available-for-sale securities Corporate bonds and notes $ 282,279 $ 13 $ (538 ) $ 281,754 Municipal bonds and notes 37,201 15 (1 ) 37,215 Treasury and agency notes and bills 41,271 10 (13 ) 41,268 Commercial paper 33,774 2 (1 ) 33,775 Money market funds 20,883 — — 20,883 Total available-for-sale securities $ 415,408 $ 40 $ (553 ) $ 414,895 Reported in: Cash and cash equivalents $ 31,382 Short-term investments 383,513 Total marketable securities $ 414,895 At June 30, 2015 and December 31, 2014 , the Company had $431.9 million and $434.4 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 $16.8 million and $19.5 million at June 30, 2015 and December 31, 2014 , 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, 2015 and 2014 . Unrealized losses and unrealized gains were $0.4 million and $0.1 million , respectively, net of tax, as of June 30, 2015 . 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, 2015 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 June 30, 2015 and 2014 , 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, 2015 and December 31, 2014, which have been in a continuous unrealized loss position, aggregated by investment category and length of time (in thousands): June 30, 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 $ 190,667 $ (475 ) $ 46,714 $ (38 ) $ 237,381 $ (513 ) Treasury and agency notes and bills 4,618 (6 ) — — 4,618 (6 ) Municipal bonds and notes 56,584 (96 ) — — 56,584 (96 ) Total $ 251,869 $ (577 ) $ 46,714 $ (38 ) $ 298,583 $ (615 ) December 31, 2014 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 $ 240,165 $ (535 ) $ 5,453 $ (3 ) $ 245,618 $ (538 ) Municipal bonds and notes 1,061 (1 ) — — 1,061 (1 ) Commercial paper 9,482 (1 ) — — 9,482 (1 ) Treasury and agency notes and bills 16,245 (13 ) — — 16,245 (13 ) Total $ 266,953 $ (550 ) $ 5,453 $ (3 ) $ 272,406 $ (553 ) The estimated fair value of marketable securities by contractual maturity at June 30, 2015 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 $ 142,238 Due in one to two years 144,683 Due in two to three years 128,156 Total $ 415,077

Discontinued Operations

Discontinued Operations	6 Months Ended
	Jun. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	DISCONTINUED OPERATIONS In the first quarter of 2014, the Company announced the cessation of all mems|cam manufacturing operations. This was the last manufacturing operation in the DigitalOptics business and for the entire Company. This action, which occurred primarily during the first half of 2014, included a reduction of over 300 employees and the closure of facilities in Arcadia, California, Rochester, New York, Hsinchu, Taiwan and Japan and was substantially complete in the first quarter of 2015. For more information regarding these actions, see Note 14 – "Restructuring, Impairment of Long-Lived Assets and Other Charges." The Company has reported the results of operations and financial position of this business in discontinued operations within the Condensed Consolidated Statements of Operations for all periods presented. Assets and liabilities of discontinued operations are not material as of December 31, 2014 and June 30, 2015 and are, therefore, included in other line items on the Condensed Consolidated Balance Sheets. See below for more information regarding balance sheet classification. The results from discontinued operations were as follows (in thousands): Three Months Ended Six Months Ended June 30, 2015 June 30, 2014 June 30, 2015 June 30, 2014 Revenues: Product and service revenues $ — $ 32 $ — $ 32 Total revenues — 32 — 32 Operating expenses: Cost of revenues — 2 — 21 Research, development and other related costs — 442 — 5,554 Selling, general and administrative — 142 389 2,379 Restructuring, impairment of long-lived assets and other charges — 419 (1 ) (371 ) 4,535 (1 ) Total operating expenses — 1,005 18 12,489 Operating loss before taxes — (973 ) (18 ) (12,457 ) Other income and expense, net — 307 — 487 Benefit from income taxes (342 ) (1,921 ) (387 ) (698 ) Net income (loss) from discontinued operations $ 342 $ 1,255 $ 369 $ (11,272 ) (1) As noted above, in January 2014, the Company announced the cessation of all mems|cam manufacturing operations. As part of these actions, the Company incurred severance and accelerated lease obligations and other charges. See Note 14 for additional information. The current assets and current liabilities of discontinued operations were as follows (in thousands): June 30, 2015 December 31, 2014 Accounts receivable and other assets, net $ — (1) $ 390 (2) Total current assets of discontinued operations $ — $ 390 Accrued liabilities — (1) 2,873 (3) Total current liabilities of discontinued operations $ — $ 2,873 (1) As of June 30, 2015, the activities related to the discontinued operations described above have been substantially completed. Consequently, all balance sheet items have been written off, disposed of or settled. (2) This amount is included in "Other current assets" on the condensed consolidated balance sheet. (3) This amount is included in "Accrued liabilities" on the condensed consolidated balance sheet.

Fair Value

Fair Value	6 Months Ended
	Jun. 30, 2015
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, 2014 and June 30, 2015. 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, 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) $ 2,296 $ 2,296 $ — $ — Corporate bonds and notes (2) 310,677 — 310,677 — Municipal bonds and notes (2) 73,507 — 73,507 — Treasury and agency notes and bills (2) 19,206 — 19,206 — Commercial paper (3) 9,391 — 9,391 — Total Assets $ 415,077 $ 2,296 $ 412,781 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at June 30, 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. 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, 2014 (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) $ 20,883 $ 20,883 $ — $ — Corporate bonds and notes (2) 281,754 — 281,754 — Municipal bonds and notes (2) 37,215 — 37,215 — Treasury and agency notes and bills (2) 41,268 — 41,268 — Commercial paper (3) 33,775 — 33,775 — Total Assets $ 414,895 $ 20,883 $ 394,012 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at December 31, 2014 : (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. Non-Recurring Fair Value Measurements The following table represents the activity in level 3 assets (in thousands): Patent Assets Balance at December 31, 2014 $ 4,280 (1 ) Asset additions — Assets sold — Assets received — Balance at June 30, 2015 $ 4,280 (1) This amount represents the value of the patents that were received in 2014 as part of settlement agreements reached with parties to resolve prior disputes. These assets were valued using a methodology based on an arms-length purchase price of bulk patent assets, with adjustments based on limited pick rights, the total available market, and remaining average patent life. The value above is gross and the accumulated amortization to date is $0.6 million .

Identified Intangible Assets

Identified Intangible Assets	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Identified Intangible Assets	IDENTIFIED INTANGIBLE ASSETS Identified intangible assets consisted of the following (in thousands): June 30, 2015 December 31, 2014 Average Life (Years) Gross Assets Accumulated Amortization Net Gross Assets Accumulated Amortization Net Acquired patents / core technology 3-15 $ 135,107 $ (70,572 ) $ 64,535 $ 132,157 $ (62,053 ) $ 70,104 Existing technology 5-10 18,920 (18,530 ) 390 18,700 (17,932 ) 768 Customer contracts 3-9 8,600 (7,047 ) 1,553 8,600 (6,569 ) 2,031 Trade name 4-10 300 (289 ) 11 520 (498 ) 22 $ 162,927 $ (96,438 ) $ 66,489 $ 159,977 $ (87,052 ) $ 72,925 Amortization expense for the three months ended June 30, 2015 and 2014 amounted to $4.7 million and $4.6 million , respectively. Amortization expense for the six months ended June 30, 2015 and 2014 amounted to $9.4 million and $9.2 million , respectively. As of June 30, 2015 , the estimated future amortization expense of intangible assets is as follows (in thousands): 2015 (remaining 6 months) $ 9,381 2016 17,994 2017 15,719 2018 13,936 2019 5,504 Thereafter 3,955 $ 66,489

Net Income (Loss) Per Share

Net Income (Loss) Per Share	6 Months Ended
	Jun. 30, 2015
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 and six months ended June 30, 2015 and 2014. The following table sets forth the computation of basic and diluted shares (in thousands): Three Months Ended Six Months Ended June 30, 2015 June 30, 2014 June 30, June 30, Denominator: Weighted average common shares outstanding 52,333 52,896 52,435 53,106 Less: Unvested common shares subject to repurchase (40 ) (84 ) (48 ) (90 ) Total common shares-basic 52,293 52,812 52,387 53,016 Effect of dilutive securities: Stock awards 348 268 398 306 Restricted stock awards and units 411 317 480 288 Total common shares-diluted 53,052 53,397 53,265 53,610 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 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. For the three and six months ended June 30, 2014, in the calculation of net income per share, 2.0 million and 2.2 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, 2015
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, 2015, the amount authorized under this plan to be used for repurchases is $250.0 million . As of June 30, 2015 , the Company had repurchased a total of approximately 6,268,000 shares of common stock, since inception of the plan, at an average price of $25.34 per share for a total cost of $158.9 million . As of December 31, 2014 , the Company had repurchased a total of approximately 4,901,000 shares of common stock, since inception of the plan, at an average price of $21.39 per share for a total cost of $104.9 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, 2015 , the total amount available for repurchase was $91.1 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, 2015 , there were approximately 4.2 million shares reserved for future grants under 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, 2014 1,616 $19.34 Options granted 50 $38.34 Options exercised (408 ) $19.67 Options canceled / forfeited / expired (67 ) $17.34 Balance at June 30, 2015 1,191 $20.14 Restricted Stock Awards and Units Information with respect to outstanding restricted stock awards and units as of June 30, 2015 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, 2014 502 633 1,135 $ 20.30 Awards and units granted 398 74 472 $ 40.77 Awards and units vested / earned (158 ) (144 ) (302 ) $ 20.44 Awards and units canceled / forfeited (27 ) (60 ) (87 ) $ 19.11 Balance at June 30, 2015 715 503 1,218 $ 28.27 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, 2015 , there were approximately 530,586 shares reserved for grant under the ESPP and the International ESPP, collectively.

Stock-Based Compensation Expens

Stock-Based Compensation Expense	6 Months Ended
	Jun. 30, 2015
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, 2015 and 2014 is as follows (in thousands): Three Months Ended Six Months Ended June 30, 2015 June 30, 2014 June 30, 2015 June 30, 2014 Cost of revenues $ — $ — $ — $ 18 Research, development and other related costs 1,006 740 1,696 1,657 Selling, general and administrative 2,558 2,171 3,875 4,740 Total stock-based compensation expense 3,564 2,911 $ 5,571 $ 6,415 Stock-based compensation expense categorized by various equity components for the three and six months ended June 30, 2015 and 2014 is summarized in the table below (in thousands): Three Months Ended Six Months Ended June 30, 2015 June 30, 2014 June 30, 2015 June 30, 2014 Employee stock options $ 620 $ 812 $ 1,506 $ 1,801 Restricted stock awards and units 2,786 1,931 3,760 4,245 Employee stock purchase plan 158 168 305 369 Total stock-based compensation expense $ 3,564 $ 2,911 $ 5,571 $ 6,415 The following assumptions were used to value the options granted: Three Months Ended Six Months Ended June 30, 2015 June 30, 2014 June 30, 2015 June 30, 2014 Expected life (in years) 3.8 4.9 3.8 4.9 Risk-free interest rate 1.1 % 1.6 % 1.1-1.4% 1.6-1.7% Dividend yield 2.1 % 4.1 % 2.1 -2.9% 3.4 -4.1% Expected volatility 35.6 % 39.0 % 35.5 - 35.6% 39.0 - 41.4% ESPP grants occur in February and August. The following assumptions were used to value the ESPP shares for these grants: February 2015 February 2014 Expected life (years) 2.0 2.0 Risk-free interest rate 0.4 % 0.3 % Dividend yield 3.4 % 3.4 % Expected volatility 30.0 % 31.0 %

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The provision for income taxes for the three months and six months ended June 30, 2015 was $11.8 million and $29.1 million , respectively. The provision for income taxes for the three months and six months ended June 30, 2015 was primarily related to tax liability generated from U.S. and foreign operations, and foreign withholding taxes. The benefit from income taxes for the three months ended June 30, 2014 was $1.1 million and the provision for income taxes for the six months ended June 30, 2014 was $21.6 million . The benefit from income taxes for the three months ended June 30, 2014 was primarily due to a decrease in the forecasted effective tax rate applied to actual year-to-date income that remained relatively constant as compared to the first quarter of 2014. The provision for income taxes for the six months ended June 30, 2014 was primarily related to foreign withholding taxes and foreign tax liability generated from 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 increase in the provision for income taxes for the six months ended June 30, 2015 as compared to the same period in the prior year is largely attributable to higher profitability in 2015 as compared to the prior year. As of June 30, 2015, unrecognized tax benefits approximated $3.0 million , of which $1.3 million would affect the effective tax rate if recognized. At December 31, 2014, unrecognized tax benefits were $2.7 million of which $1.1 million would affect the effective tax rate if recognized. It is reasonably possible that unrecognized tax benefits may decrease by a range of $0.8 million to $1.0 million in the next 12 months due to the expected lapse of statutes of limitation relating to the federal and state research tax credit, certain domestic deductions, as well as 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 and six months ended June 30, 2015, the Company recognized an insignificant amount of interest and penalties related to unrecognized tax benefits. As of June 30, 2015 and December 31, 2014, the Company had accrued $0.4 million and $0.5 million , respectively, of interest and penalties related to unrecognized tax benefits. At June 30, 2015, the Company's 2010 through 2014 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 recently 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 last year 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 - 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, 2015
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, 2015 and 2014 amounted to $0.5 million and $0.9 million , respectively. Rent expense for the six months ended June 30, 2015 and 2014 amounted to $1.0 million and $1.9 million , respectively. As of June 30, 2015 , future minimum lease payments are as follows (in thousands): Lease Obligations 2015 (remaining 6 months) $ 1,167 2016 2,237 2017 2,270 2018 2,306 2019 2,135 Thereafter 1,808 $ 11,923 Contingencies For all legal proceedings described below, 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 these lawsuits 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, in Santa Clara County. 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. The complaint seeks, among other things, a judicial determination and declaration that Toshiba must pay royalties on certain types of face-up ball grid array packages, must cooperate in good faith with audits conducted pursuant to the parties’ license agreement, and must allow the auditor to examine and audit all records of Toshiba, including records of all of its divisions, subsidiaries, and affiliates, that may contain information bearing upon the amounts payable under the license agreement. The complaint also seeks an award of damages in an amount to be determined at trial, interest on damages, attorneys’ fees, costs, and such other and further relief as the court may deem proper. 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 and declarations regarding the definition of “TCC” as used in the parties’ license agreement and whether any Toshiba products are currently royalty-bearing, the conditions precedent to the accrual of royalties under the license agreement, the manner and scope of Tessera, Inc.’s audit rights under the license agreement, termination of the license agreement, and Tessera, Inc.’s alleged failure to identify specific patents that serve as the basis for its claim that it is entitled to royalties under the license agreement. The counterclaims also seek an accounting of any amount of alleged overpayment by Toshiba under the license agreement, restitution, damages in an amount to be determined at trial, costs, expenses, attorneys’ fees, and such other and further relief as the court may deem just and proper. On July 10, 2015, Tessera, Inc. filed its answer and affirmative defenses to Toshiba’s counterclaims. An initial case management conference is scheduled for October 15, 2015. Other Litigation Matters In addition to the foregoing 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, 2015
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, 2015 June 30, 2014 June 30, 2015 June 30, 2014 Taiwan $ 7,833 12 % $ 415 1 % $ 42,615 30 % $ 51,043 41 % U.S. 25,263 39 3,053 8 50,793 35 6,938 5 Korea 23,858 37 23,209 62 39,224 27 49,729 40 Japan 4,576 7 4,450 12 6,220 4 9,928 8 Other 2,658 5 6,086 17 5,186 4 7,911 6 $ 64,188 100 % $ 37,213 100 % $ 144,038 100 % $ 125,549 100 % For the three months ended June 30, 2015 and 2014, there were four and two customers, respectively, that each accounted for 10% or more of total revenues. For the six months ended June 30, 2015 and 2014, there were four and two customers, respectively, that each accounted for 10% or more of total revenues.

Restructuring, Impairment of Lo

Restructuring, Impairment of Long-Lived Assets And Other Charges	6 Months Ended
	Jun. 30, 2015
Restructuring and Related Activities [Abstract]
Restructuring, Impairment of Long-Lived Assets And Other Charges	RESTRUCTURING, IMPAIRMENT OF LONG-LIVED ASSETS AND OTHER CHARGES In January 2014, the Company announced the cessation of all mems|cam manufacturing operations. As part of these efforts, the Company had a workforce reduction of over 300 employees and closed facilities in Arcadia, California, Rochester, New York, Hsinchu, Taiwan and Japan. These actions triggered a $32.8 million impairment of manufacturing equipment, a $4.8 million impairment of intangible assets, purchase obligations of $9.8 million for inventory and equipment, and impairments of IT related assets of $2.1 million in the fourth quarter of 2013. Additionally, in the first three months of 2014, the Company incurred additional restructuring and other charges of $1.0 million of employee severance. As of December 31, 2014 these actions were substantially complete so the expenses in the three and six months ended June 30, 2015 were immaterial. In this document, the operations and financial results of the mems|cam operations are considered discontinued operations. For more information regarding these actions, see Note 5 - " Discontinued Operations. "

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2015
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS Dividend Payment On July 31, 2015, the Board declared a cash dividend of $0.20 per share of common stock, payable on September 18, 2015 for the stockholders of record at the close of business on August 28, 2015.

Summary Of Significant Accoun22

Summary Of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
Basis of Accounting	The accompanying interim unaudited condensed consolidated financial statements as of June 30, 2015 and 2014, 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, 2014 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, 2014, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, filed on February 25, 2015 (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. The most significant of these reclassifications are as follows: • Amortization expense is now shown separately on the Condensed Consolidated Statements of Operations. • Certain balance sheet items from 2014 have been grouped together to conform with current periods presented.
New Accounting Pronouncement	Recent 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 are effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. Early adoption is permitted. Entities may apply the amendments in ASU 2014-12 either: (a) prospectively to all awards granted or modified after the effective date; or (b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. The adoption of ASU 2014-12 is not expected to have a material effect on the Company’s unaudited condensed consolidated financial statements or disclosures. 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 is still under review by the FASB based on exposure drafts. Therefore, the Company is still considering how the guidance might affect its financial reporting once finalized.

Composition Of Certain Financ23

Composition Of Certain Financial Statement Captions (Tables)	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Other Current Assets	Other current assets consisted of the following (in thousands): June 30, 2015 December 31, 2014 Prepaid income taxes $ 14,925 $ 12,841 Interest receivable 2,566 2,138 Other 2,727 2,298 $ 20,218 $ 17,277
Accrued Liabilities	Accrued liabilities consisted of the following (in thousands): June 30, 2015 December 31, 2014 Employee compensation and benefits $ 5,401 $ 10,734 Other 2,414 5,423 $ 7,815 $ 16,157
Accumulated Other Comprehensive Income (Loss)	Accumulated other comprehensive income (loss) consisted of the following (in thousands): June 30, 2015 December 31, 2014 Unrealized gains (loss) on available-for-sale securities, net of tax $ (507 ) $ (333 ) $ (507 ) $ (333 )

Financial Instruments (Tables)

Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Summary of Marketable Securities	The following is a summary of marketable securities at June 30, 2015 and December 31, 2014 (in thousands): June 30, 2015 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Available-for-sale securities Corporate bonds and notes $ 311,108 $ 81 $ (513 ) $ 310,676 Municipal bonds and notes 73,590 13 (96 ) 73,507 Commercial paper 9,389 3 — 9,392 Treasury and agency notes and bills 19,202 10 (6 ) 19,206 Money market funds 2,296 — — 2,296 Total available-for-sale securities $ 415,585 $ 107 $ (615 ) $ 415,077 Reported in: Cash and cash equivalents $ 4,596 Short-term investments 410,481 Total marketable securities $ 415,077 December 31, 2014 Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Values Available-for-sale securities Corporate bonds and notes $ 282,279 $ 13 $ (538 ) $ 281,754 Municipal bonds and notes 37,201 15 (1 ) 37,215 Treasury and agency notes and bills 41,271 10 (13 ) 41,268 Commercial paper 33,774 2 (1 ) 33,775 Money market funds 20,883 — — 20,883 Total available-for-sale securities $ 415,408 $ 40 $ (553 ) $ 414,895 Reported in: Cash and cash equivalents $ 31,382 Short-term investments 383,513 Total marketable securities $ 414,895
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, 2015 and December 31, 2014, which have been in a continuous unrealized loss position, aggregated by investment category and length of time (in thousands): June 30, 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 $ 190,667 $ (475 ) $ 46,714 $ (38 ) $ 237,381 $ (513 ) Treasury and agency notes and bills 4,618 (6 ) — — 4,618 (6 ) Municipal bonds and notes 56,584 (96 ) — — 56,584 (96 ) Total $ 251,869 $ (577 ) $ 46,714 $ (38 ) $ 298,583 $ (615 ) December 31, 2014 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 $ 240,165 $ (535 ) $ 5,453 $ (3 ) $ 245,618 $ (538 ) Municipal bonds and notes 1,061 (1 ) — — 1,061 (1 ) Commercial paper 9,482 (1 ) — — 9,482 (1 ) Treasury and agency notes and bills 16,245 (13 ) — — 16,245 (13 ) Total $ 266,953 $ (550 ) $ 5,453 $ (3 ) $ 272,406 $ (553 )
Estimated Fair Value of Marketable Securities by Contractual Maturity	The estimated fair value of marketable securities by contractual maturity at June 30, 2015 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 $ 142,238 Due in one to two years 144,683 Due in two to three years 128,156 Total $ 415,077

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2015
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures	The results from discontinued operations were as follows (in thousands): Three Months Ended Six Months Ended June 30, 2015 June 30, 2014 June 30, 2015 June 30, 2014 Revenues: Product and service revenues $ — $ 32 $ — $ 32 Total revenues — 32 — 32 Operating expenses: Cost of revenues — 2 — 21 Research, development and other related costs — 442 — 5,554 Selling, general and administrative — 142 389 2,379 Restructuring, impairment of long-lived assets and other charges — 419 (1 ) (371 ) 4,535 (1 ) Total operating expenses — 1,005 18 12,489 Operating loss before taxes — (973 ) (18 ) (12,457 ) Other income and expense, net — 307 — 487 Benefit from income taxes (342 ) (1,921 ) (387 ) (698 ) Net income (loss) from discontinued operations $ 342 $ 1,255 $ 369 $ (11,272 ) (1) As noted above, in January 2014, the Company announced the cessation of all mems|cam manufacturing operations. As part of these actions, the Company incurred severance and accelerated lease obligations and other charges. See Note 14 for additional information. The current assets and current liabilities of discontinued operations were as follows (in thousands): June 30, 2015 December 31, 2014 Accounts receivable and other assets, net $ — (1) $ 390 (2) Total current assets of discontinued operations $ — $ 390 Accrued liabilities — (1) 2,873 (3) Total current liabilities of discontinued operations $ — $ 2,873 (1) As of June 30, 2015, the activities related to the discontinued operations described above have been substantially completed. Consequently, all balance sheet items have been written off, disposed of or settled. (2) This amount is included in "Other current assets" on the condensed consolidated balance sheet. (3) This amount is included in "Accrued liabilities" on the condensed consolidated balance sheet.

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Jun. 30, 2015
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, 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) $ 2,296 $ 2,296 $ — $ — Corporate bonds and notes (2) 310,677 — 310,677 — Municipal bonds and notes (2) 73,507 — 73,507 — Treasury and agency notes and bills (2) 19,206 — 19,206 — Commercial paper (3) 9,391 — 9,391 — Total Assets $ 415,077 $ 2,296 $ 412,781 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at June 30, 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. 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, 2014 (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) $ 20,883 $ 20,883 $ — $ — Corporate bonds and notes (2) 281,754 — 281,754 — Municipal bonds and notes (2) 37,215 — 37,215 — Treasury and agency notes and bills (2) 41,268 — 41,268 — Commercial paper (3) 33,775 — 33,775 — Total Assets $ 414,895 $ 20,883 $ 394,012 $ — The following footnotes indicate where the noted items were recorded in the Condensed Consolidated Balance Sheet at December 31, 2014 : (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.
Fair Value Measurements, Nonrecurring	The following table represents the activity in level 3 assets (in thousands): Patent Assets Balance at December 31, 2014 $ 4,280 (1 ) Asset additions — Assets sold — Assets received — Balance at June 30, 2015 $ 4,280 (1) This amount represents the value of the patents that were received in 2014 as part of settlement agreements reached with parties to resolve prior disputes. These assets were valued using a methodology based on an arms-length purchase price of bulk patent assets, with adjustments based on limited pick rights, the total available market, and remaining average patent life. The value above is gross and the accumulated amortization to date is $0.6 million .

Identified Intangible Assets (T

Identified Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Identified Intangible Assets	Identified intangible assets consisted of the following (in thousands): June 30, 2015 December 31, 2014 Average Life (Years) Gross Assets Accumulated Amortization Net Gross Assets Accumulated Amortization Net Acquired patents / core technology 3-15 $ 135,107 $ (70,572 ) $ 64,535 $ 132,157 $ (62,053 ) $ 70,104 Existing technology 5-10 18,920 (18,530 ) 390 18,700 (17,932 ) 768 Customer contracts 3-9 8,600 (7,047 ) 1,553 8,600 (6,569 ) 2,031 Trade name 4-10 300 (289 ) 11 520 (498 ) 22 $ 162,927 $ (96,438 ) $ 66,489 $ 159,977 $ (87,052 ) $ 72,925
Estimated Future Amortization Expense	As of June 30, 2015 , the estimated future amortization expense of intangible assets is as follows (in thousands): 2015 (remaining 6 months) $ 9,381 2016 17,994 2017 15,719 2018 13,936 2019 5,504 Thereafter 3,955 $ 66,489

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	6 Months Ended
	Jun. 30, 2015
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, 2015 June 30, 2014 June 30, June 30, Denominator: Weighted average common shares outstanding 52,333 52,896 52,435 53,106 Less: Unvested common shares subject to repurchase (40 ) (84 ) (48 ) (90 ) Total common shares-basic 52,293 52,812 52,387 53,016 Effect of dilutive securities: Stock awards 348 268 398 306 Restricted stock awards and units 411 317 480 288 Total common shares-diluted 53,052 53,397 53,265 53,610

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2015
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, 2014 1,616 $19.34 Options granted 50 $38.34 Options exercised (408 ) $19.67 Options canceled / forfeited / expired (67 ) $17.34 Balance at June 30, 2015 1,191 $20.14
Summary of Restricted Stock Awards and Units	Information with respect to outstanding restricted stock awards and units as of June 30, 2015 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, 2014 502 633 1,135 $ 20.30 Awards and units granted 398 74 472 $ 40.77 Awards and units vested / earned (158 ) (144 ) (302 ) $ 20.44 Awards and units canceled / forfeited (27 ) (60 ) (87 ) $ 19.11 Balance at June 30, 2015 715 503 1,218 $ 28.27

Stock-Based Compensation Expe30

Stock-Based Compensation Expense (Tables)	6 Months Ended
	Jun. 30, 2015
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, 2015 and 2014 is as follows (in thousands): Three Months Ended Six Months Ended June 30, 2015 June 30, 2014 June 30, 2015 June 30, 2014 Cost of revenues $ — $ — $ — $ 18 Research, development and other related costs 1,006 740 1,696 1,657 Selling, general and administrative 2,558 2,171 3,875 4,740 Total stock-based compensation expense 3,564 2,911 $ 5,571 $ 6,415
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, 2015 and 2014 is summarized in the table below (in thousands): Three Months Ended Six Months Ended June 30, 2015 June 30, 2014 June 30, 2015 June 30, 2014 Employee stock options $ 620 $ 812 $ 1,506 $ 1,801 Restricted stock awards and units 2,786 1,931 3,760 4,245 Employee stock purchase plan 158 168 305 369 Total stock-based compensation expense $ 3,564 $ 2,911 $ 5,571 $ 6,415
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, 2015 June 30, 2014 June 30, 2015 June 30, 2014 Expected life (in years) 3.8 4.9 3.8 4.9 Risk-free interest rate 1.1 % 1.6 % 1.1-1.4% 1.6-1.7% Dividend yield 2.1 % 4.1 % 2.1 -2.9% 3.4 -4.1% Expected volatility 35.6 % 39.0 % 35.5 - 35.6% 39.0 - 41.4% ESPP grants occur in February and August. The following assumptions were used to value the ESPP shares for these grants: February 2015 February 2014 Expected life (years) 2.0 2.0 Risk-free interest rate 0.4 % 0.3 % Dividend yield 3.4 % 3.4 % Expected volatility 30.0 % 31.0 %

Commitments And Contingencies (

Commitments And Contingencies (Tables)	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Lease Payments and Purchase Obligations	As of June 30, 2015 , future minimum lease payments are as follows (in thousands): Lease Obligations 2015 (remaining 6 months) $ 1,167 2016 2,237 2017 2,270 2018 2,306 2019 2,135 Thereafter 1,808 $ 11,923

Segment And Geographic Inform32

Segment And Geographic Information (Tables)	6 Months Ended
	Jun. 30, 2015
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, 2015 June 30, 2014 June 30, 2015 June 30, 2014 Taiwan $ 7,833 12 % $ 415 1 % $ 42,615 30 % $ 51,043 41 % U.S. 25,263 39 3,053 8 50,793 35 6,938 5 Korea 23,858 37 23,209 62 39,224 27 49,729 40 Japan 4,576 7 4,450 12 6,220 4 9,928 8 Other 2,658 5 6,086 17 5,186 4 7,911 6 $ 64,188 100 % $ 37,213 100 % $ 144,038 100 % $ 125,549 100 %

Composition Of Certain Financ33

Composition Of Certain Financial Statement Captions - Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid income taxes	$ 14,925	$ 12,841
Interest receivable	2,566	2,138
Other	2,727	2,298
Other current assets, total	$ 20,218	$ 17,277

Composition Of Certain Financ34

Composition Of Certain Financial Statement Captions - Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Employee compensation and benefits	$ 5,401	$ 10,734
Other	2,414	5,423
Accrued liabilities, total	$ 7,815	$ 16,157

Composition Of Certain Financ35

Composition Of Certain Financial Statement Captions - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Unrealized gains (loss) on available-for-sale securities, net of tax	$ (507)	$ (333)
Accumulated other comprehensive income (loss)	$ (507)	$ (333)

Financial Instruments - Summary

Financial Instruments - Summary of Marketable Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	$ 415,585	$ 415,408
Available-for-sale securities, Gross Unrealized Gains	107	40
Available-for-sale securities, Gross Unrealized Losses	(615)	(553)
Estimated Fair Values	415,077	414,895
Corporate Bonds And Notes
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	311,108	282,279
Available-for-sale securities, Gross Unrealized Gains	81	13
Available-for-sale securities, Gross Unrealized Losses	(513)	(538)
Estimated Fair Values	310,676	281,754
Municipal Bonds And Notes
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	73,590	37,201
Available-for-sale securities, Gross Unrealized Gains	13	15
Available-for-sale securities, Gross Unrealized Losses	(96)	(1)
Estimated Fair Values	73,507	37,215
Commercial Paper
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	9,389	33,774
Available-for-sale securities, Gross Unrealized Gains	3	2
Available-for-sale securities, Gross Unrealized Losses	0	(1)
Estimated Fair Values	9,392	33,775
Treasury And Agency Notes And Bills
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	19,202	41,271
Available-for-sale securities, Gross Unrealized Gains	10	10
Available-for-sale securities, Gross Unrealized Losses	(6)	(13)
Estimated Fair Values	19,206	41,268
Money Market Funds
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Cost	2,296	20,883
Available-for-sale securities, Gross Unrealized Gains	0	0
Available-for-sale securities, Gross Unrealized Losses	0	0
Estimated Fair Values	2,296	20,883
Cash and Cash Equivalents
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Values	4,596	31,382
Short-term Investments
Schedule of Available-for-sale Securities [Line Items]
Estimated Fair Values	$ 410,481	$ 383,513

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Schedule of Investments [Line Items]
Cash, cash equivalents and short-term investments	$ 431.9	$ 434.4
Unrealized loss, net	0.4
Unrealized gain, net	0.1
Operating Accounts
Schedule of Investments [Line Items]
Cash, cash equivalents and short-term investments	$ 16.8	$ 19.5

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, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 251,869	$ 266,953
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(577)	(550)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	46,714	5,453
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(38)	(3)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	298,583	272,406
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(615)	(553)
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	190,667	240,165
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(475)	(535)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Fair Value	46,714	5,453
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 months or more, Gross Unrealized Losses	(38)	(3)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	237,381	245,618
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(513)	(538)
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	4,618	16,245
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(6)	(13)
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	4,618	16,245
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	(6)	(13)
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	56,584	1,061
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	(96)	(1)
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	56,584	1,061
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses	$ (96)	(1)
Commercial Paper
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value		9,482
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses		(1)
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		9,482
Available-for-sale Securities, Continuous Unrealized Loss Position, Gross Unrealized Losses		$ (1)

Financial Instruments - Estimat

Financial Instruments - Estimated Fair Value of Marketable Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Due in one year or less	$ 142,238
Due in one to two years	144,683
Due in two to three years	128,156
Estimated Fair Values	$ 415,077	$ 414,895

Discontinued Operations - Addit

Discontinued Operations - Additional Information (Details) - employee	1 Months Ended	6 Months Ended
	Jan. 31, 2014	Jun. 30, 2014
Mems Cam Manufacturing Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Reduction in employees	300	300

Discontinued Operations - Resul

Discontinued Operations - Results from Discontinued Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Product and service revenues	$ 0	$ 32	$ 0	$ 32
Total revenues	0	32	0	32
Cost of revenues	0	2	0	21
Research, development and other related costs	0	442	0	5,554
Selling, general and administrative	0	142	389	2,379
Restructuring, impairment of long-lived assets and other charges	0	419	(371)	4,535
Total operating expenses	0	1,005	18	12,489
Operating loss before taxes	0	(973)	(18)	(12,457)
Other income and expense, net	0	307	0	487
Benefit from income taxes	(342)	(1,921)	(387)	(698)
Net income (loss) from discontinued operations	$ 342	$ 1,255	$ 369	$ (11,272)

Discontinued Operations - Curre

Discontinued Operations - Current and Non-current Asset and Current Liabilities of Discontinued Operations (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Disposal Group, Including Discontinued Operation, Classified Balance Sheet Disclosures [Abstract]
Accounts receivable and other assets, net	$ 0	$ 390
Total current assets of discontinued operations	0	390
Accrued liabilities	0	2,873
Total current liabilities of discontinued operations	$ 0	$ 2,873

Fair Value - Assets Required to

Fair Value - Assets Required to be Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 415,077	$ 414,895
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	2,296	20,883
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	412,781	394,012
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	2,296	20,883
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	2,296	20,883
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	310,677	281,754
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	310,677	281,754
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	73,507	37,215
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	73,507	37,215
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	19,206	41,268
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	19,206	41,268
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	9,391	33,775
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	9,391	33,775
Commercial Paper | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 0	$ 0

Fair Value - Measured on a Nonr

Fair Value - Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accumulated amortization	$ 96,438	$ 87,052
Patent Assets | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Accumulated amortization	600
Fair Value, Assets Measured on NonRecurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at December 31, 2014	4,280
Asset additions	0
Assets sold	0
Assets received	0
Balance at June 30, 2015	$ 4,280

Identified Intangible Assets -

Identified Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 4,691	$ 4,570	$ 9,386	$ 9,173

Identified Intangible Assets 46

Identified Intangible Assets - Identified Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Assets	$ 162,927	$ 159,977
Accumulated Amortization	(96,438)	(87,052)
Net	66,489	72,925
Acquired Patents Core Technology
Finite-Lived Intangible Assets [Line Items]
Gross Assets	135,107	132,157
Accumulated Amortization	(70,572)	(62,053)
Net	$ 64,535	70,104
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	$ 18,920	18,700
Accumulated Amortization	(18,530)	(17,932)
Net	$ 390	768
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	$ 8,600	8,600
Accumulated Amortization	(7,047)	(6,569)
Net	$ 1,553	2,031
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	$ 300	520
Accumulated Amortization	(289)	(498)
Net	$ 11	$ 22
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

Identified Intangible Assets 47

Identified Intangible Assets - Estimated Future Amortization Expense of Intangible Assets, Excluding the In-Process Research and Development (Detail) $ in Thousands	Jun. 30, 2015USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2015 (remaining 6 months)	$ 9,381
2,016	17,994
2,017	15,719
2,018	13,936
2,019	5,504
Thereafter	3,955
Finite-lived intangible assets, net	$ 66,489

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, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Denominator:
Weighted average common shares outstanding (in shares)	52,333	52,896	52,435	53,106
Less: Unvested common shares subject to repurchase	(40)	(84)	(48)	(90)
Total common shares-basic (in shares)	52,293	52,812	52,387	53,016
Effect of dilutive securities:
Stock awards (in shares)	348	268	398	306
Restricted stock awards and units (in shares)	411	317	480	288
Total common shares-diluted (in shares)	53,052	53,397	53,265	53,610

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, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Shares of common stock excluded from the computation of net loss per share	0.8	2	1.1	2.2

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($)	6 Months Ended	89 Months Ended	95 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2015
Schedule of Trading Securities and Other Trading Assets [Line Items]
Stock repurchase program, authorized amount	$ 250,000,000		$ 250,000,000
Treasury stock, total repurchase during period (in shares)		4,901,000	6,268,000
Treasury stock, average price of share repurchased (in dollars per share)		$ 21.39	$ 25.34
Treasury stock, total cost of repurchased stock		$ 104,900,000	$ 158,900,000
Stock repurchase program, remaining amount available for repurchase	$ 91,100,000		$ 91,100,000
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	530,586		530,586
2003 Plan | Employee Stock Option
Schedule of Trading Securities and Other Trading Assets [Line Items]
Shares reserved for grant	4,200,000		4,200,000

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Stock Option Activity (Detail) - 6 months ended Jun. 30, 2015 - $ / shares shares in Thousands	Total
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares, Beginning balance (shares)	1,616
Number of Shares, Options granted (shares)	50
Number of Shares, Options exercised (shares)	(408)
Number of Shares, Options cancelled / forfeited / expired (shares)	(67)
Number of Shares, Ending balance (shares)	1,191
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)	$ 19.34
Weighted Average Exercise Price Per Share, Options granted (usd per share)	38.34
Weighted Average Exercise Price Per Share, Options exercised (usd per share)	19.67
Weighted Average Exercise Price Per Share, Options cancelled / forfeited / expired (usd per share)	17.34
Weighted Average Exercise Price Per Share, Ending balance (usd per share)	$ 20.14

Stockholders' Equity - Summar52

Stockholders' Equity - Summary of Restricted Stock Awards and Units (Detail) - 6 months ended Jun. 30, 2015 - Restricted Stock - $ / shares shares in Thousands	Total
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)	1,135
Restricted stock awards and units, granted (shares)	472
Restricted stock awards and units, vested / earned (shares)	(302)
Restricted stock awards and units, cancelled / forfeited (shares)	(87)
Restricted stock awards and units, ending balance (shares)	1,218
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)	$ 20.30
Weighted average grant date fair value per share of restricted stock and units, granted (usd per share)	40.77
Weighted average grant date fair value per share of restricted stock and units, vested / earned (usd per share)	20.44
Weighted average grant date fair value of restricted stock and units, cancelled / forfeited (usd per share)	19.11
Weighted average grant date fair value per share of restricted stock and units, ending balance (usd per share)	$ 28.27
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)	502
Restricted stock awards and units, granted (shares)	398
Restricted stock awards and units, vested / earned (shares)	(158)
Restricted stock awards and units, cancelled / forfeited (shares)	(27)
Restricted stock awards and units, ending balance (shares)	715
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)	633
Restricted stock awards and units, granted (shares)	74
Restricted stock awards and units, vested / earned (shares)	(144)
Restricted stock awards and units, cancelled / forfeited (shares)	(60)
Restricted stock awards and units, ending balance (shares)	503

Stock-Based Compensation Expe53

Stock-Based Compensation Expense - Effect of Recording Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 3,564	$ 2,911	$ 5,571	$ 6,415
Cost of Revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	0	0	0	18
Research, Development and Other Related Costs
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	1,006	740	1,696	1,657
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total stock-based compensation expense	$ 2,558	$ 2,171	$ 3,875	$ 4,740

Stock-Based Compensation Expe54

Stock-Based Compensation Expense - Categorized by Equity Components (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 3,564	$ 2,911	$ 5,571	$ 6,415
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	620	812	1,506	1,801
Restricted Stock Awards And Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	2,786	1,931	3,760	4,245
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 158	$ 168	$ 305	$ 369

Stock-Based Compensation Expe55

Stock-Based Compensation Expense - Schedule of Assumptions Used to Value Options Granted (Detail)	1 Months Ended		3 Months Ended		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
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	4 years 10 months 24 days	3 years 9 months 24 days	4 years 10 months 10 days
Risk-free interest rate			1.10%	1.60%
Dividend yield			2.10%	4.10%
Expected volatility			35.60%	39.00%
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	0.40%	0.30%
Dividend yield	3.40%	3.40%
Expected volatility	30.00%	31.00%
Minimum | Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate					1.10%	1.60%
Dividend yield					2.10%	3.40%
Expected volatility					35.50%	39.00%
Maximum | Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate					1.40%	1.70%
Dividend yield					2.90%	4.10%
Expected volatility					35.60%	41.40%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Income Tax Contingency [Line Items]
Provision for (benefit from) income taxes	$ (11,828)	$ 1,124	$ (29,052)	$ (21,562)
Unrecognized tax benefits	3,000		3,000		$ 2,700
Unrecognized tax benefits that would impact the effective income tax rate	$ 1,300		1,300		1,100
Interest and tax penalties related to unrecognized tax benefits			400		$ 500
Minimum
Income Tax Contingency [Line Items]
Expected reduction resulting from lapse of applicable statute of limitations			800
Maximum
Income Tax Contingency [Line Items]
Expected reduction resulting from lapse of applicable statute of limitations			$ 1,000

Commitments And Contingencies -

Commitments And Contingencies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]
Rent under operating lease agreement	$ 500	$ 900	$ 1,000	$ 1,900
2015 (remaining 6 months)	1,167		1,167
2,016	2,237		2,237
2,017	2,270		2,270
2,018	2,306		2,306
2,019	2,135		2,135
Thereafter	1,808		1,808
Lease Obligations, Total	$ 11,923		$ 11,923

Segment And Geographic Inform58

Segment And Geographic Information - Schedule of Geographic Revenue Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015USD ($)customer	Jun. 30, 2014USD ($)customer	Jun. 30, 2015USD ($)customersegment	Jun. 30, 2014USD ($)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	2	4	2
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 64,188	$ 37,213	$ 144,038	$ 125,549
Percentage of revenue	100.00%	100.00%	100.00%	100.00%
Taiwan
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 7,833	$ 415	$ 42,615	$ 51,043
Percentage of revenue	12.00%	1.00%	30.00%	41.00%
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 25,263	$ 3,053	$ 50,793	$ 6,938
Percentage of revenue	39.00%	8.00%	35.00%	5.00%
Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 23,858	$ 23,209	$ 39,224	$ 49,729
Percentage of revenue	37.00%	62.00%	27.00%	40.00%
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 4,576	$ 4,450	$ 6,220	$ 9,928
Percentage of revenue	7.00%	12.00%	4.00%	8.00%
Other Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Foreign revenues	$ 2,658	$ 6,086	$ 5,186	$ 7,911
Percentage of revenue	5.00%	17.00%	4.00%	6.00%

Restructuring, Impairment of 59

Restructuring, Impairment of Long-Lived Assets And Other Charges - Additional Information (Detail) - Mems Cam Manufacturing Operations $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 31, 2014employee	Mar. 31, 2014USD ($)	Dec. 31, 2013USD ($)	Jun. 30, 2014employee
Restructuring Cost and Reserve [Line Items]
Reduction in employees | employee	300			300
Impairment charges			$ 32.8
Intangible asset impairment charge			4.8
Asset impairment charges			2.1
Severance costs		$ 1
Inventories and Equipment
Restructuring Cost and Reserve [Line Items]
Purchase obligation			$ 9.8

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - $ / shares	Jul. 31, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Subsequent Event [Line Items]
Cash dividends declared per share (in dollars per share)		$ 0.20	$ 0.62	$ 0.40	$ 0.72
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared per share (in dollars per share)	$ 0.20