Entity Central Index Key Document and entity information. Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Statement Of Financial Position [Abstract] Current Assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Accounts receivable, net of allowances of $1,800 and $883 at March 31, 2015 and June 30, 2014, respectively Accounts Receivable Net Current Inventories Inventory Net Prepaid expenses and other current assets Prepaid Expense And Other Assets Current Total current assets Assets Current Property and equipment at cost, net of accumulated depreciation of $66,662 and $49,482 at March 31, 2015 and June 30, 2014, respectively Property Plant And Equipment Net Goodwill Goodwill Acquired intangibles, net Finite Lived Intangible Assets Net Non-current other assets Other Assets Noncurrent Total assets Assets Current Liabilities: Liabilities Current [Abstract] Accounts payable Accounts Payable Current Accrued compensation Employee Related Liabilities Current Income taxes payable Accrued Income Taxes Current Acquisition-related liabilities Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Other accrued liabilities Other Accrued Liabilities Current Current portion of long-term debt Long Term Debt Current Total current liabilities Liabilities Current Long-term debt, net of issuance costs Long Term Debt Noncurrent Acquisition-related liabilities Business Combination Contingent Consideration Liability Noncurrent Deferred tax liabilities Deferred Tax Liabilities Noncurrent Other long-term liabilities Other Liabilities Noncurrent Total liabilities Liabilities Stockholders' Equity: Stockholders Equity [Abstract] Common stock: $0.001 par value; 120,000,000 shares authorized, 57,392,290 and 55,911,513 shares issued, and 36,798,673 and 36,863,802 shares outstanding, at March 31, 2015 and June 30, 2014, respectively Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Treasury stock: 20,593,617 and 19,047,711 common treasury shares at March 31, 2015 and June 30, 2014, respectively, at cost Treasury Stock Value Accumulated other comprehensive income Accumulated Other Comprehensive Income Loss Net Of Tax Retained earnings Retained Earnings Accumulated Deficit Total stockholders' equity Stockholders Equity Liabilities and stockholders' equity Liabilities And Stockholders Equity Allowance for doubtful accounts receivable Allowance For Doubtful Accounts Receivable Current Property and equipment, accumulated depreciation Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Common stock, par value Common Stock Par Or Stated Value Per Share Common stock, shares authorized Common Stock Shares Authorized Common stock, shares issued Common Stock Shares Issued Common stock, shares outstanding Common Stock Shares Outstanding Common treasury shares Treasury Stock Shares Income Statement [Abstract] Net revenue Sales Revenue Net Cost of revenue Cost Of Goods And Services Sold Gross margin Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development Research And Development Expense Selling, general, and administrative Selling General And Administrative Expense Acquired intangibles amortization Amortization Of Intangible Assets Change in contingent consideration Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 Total operating expenses Operating Expenses Operating income/(loss) Operating Income Loss Interest and other income, net Interest And Other Income Interest expense Interest Expense Income/(loss) before provision for income taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Provision for income taxes Income Tax Expense Benefit Net income/(loss) Net Income Loss Net income/(loss) per share: Earnings Per Share [Abstract] Basic Earnings Per Share Basic Diluted Earnings Per Share Diluted Shares used in computing net income/(loss) per share: Weighted Average Number Of Shares Outstanding [Abstract] Basic Weighted Average Number Of Shares Outstanding Basic Diluted Weighted Average Number Of Diluted Shares Outstanding Statement Of Income And Comprehensive Income [Abstract] Net income/(loss) Other comprehensive income: Comprehensive Income Net Of Tax [Abstract] Change in unrealized net gain on investments Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Reclassification from accumulated other comprehensive income to interest income for accretion of non-current investments Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax Net current-period other comprehensive income/(loss) Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Comprehensive income/(loss) Comprehensive Income Net Of Tax Investment impairment recovery. Payroll taxes for deferred stock and market stock units. Common stock issued for contingent consideration. Statement Of Cash Flows [Abstract] Cash flows from operating activities Net Cash Provided By Used In Operating Activities [Abstract] Net income Adjustments to reconcile net income to net cash provided by operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Share-based compensation costs Allocated Share Based Compensation Expense Depreciation and amortization Depreciation Depletion And Amortization Acquired intangibles amortization Adjustment For Amortization Accretion and remeasurement of contingent consideration liability Deferred taxes Increase Decrease In Deferred Income Taxes Impairment recovery on investments Investment Impairment Recovery Non-cash interest income Other Noncash Income Amortization of debt issuance costs Amortization Of Financing Costs Foreign currency remeasurement gain Foreign Currency Transaction Gain Loss Before Tax Changes in operating assets and liabilities, net of acquisitions: Increase Decrease In Operating Capital [Abstract] Accounts receivable, net Increase Decrease In Accounts Receivable Inventories Increase Decrease In Inventories Prepaid expenses and other current assets Increase Decrease In Other Current Assets Other assets Increase Decrease In Other Operating Assets Accounts payable Increase Decrease In Accounts Payable Accrued compensation Increase Decrease In Employee Related Liabilities Income taxes payable Increase Decrease In Accrued Income Taxes Payable Other accrued liabilities Increase Decrease In Other Accrued Liabilities Net cash provided by operating activities Net Cash Provided By Used In Operating Activities Continuing Operations Cash flows from investing activities Net Cash Provided By Used In Investing Activities [Abstract] Proceeds from sales of non-current investments Proceeds From Sale Maturity And Collections Of Investments Acquisition of business, net of cash acquired Payments To Acquire Businesses Net Of Cash Acquired Purchases of property and equipment Payments To Acquire Property Plant And Equipment Net cash used in investing activities Net Cash Provided By Used In Investing Activities Continuing Operations Cash flows from financing activities Net Cash Provided By Used In Financing Activities [Abstract] Payment of acquisition-related liabilities Payments Of Merger Related Costs Financing Activities Purchases of treasury stock Payments For Repurchase Of Common Stock Proceeds from issuance of shares Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options Proceeds from issuance of long-term debt Proceeds From Issuance Of Long Term Debt Payment of debt issuance costs Payments Of Debt Issuance Costs Excess tax benefit from share-based compensation Excess Tax Benefit From Share Based Compensation Financing Activities Payroll taxes for deferred stock and market stock units Payroll Taxes For Deferred Stock And Market Stock Units Payment of debt Repayments Of Debt Net cash provided by/(used in) financing activities Net Cash Provided By Used In Financing Activities Continuing Operations Effect of exchange rate changes on cash and cash equivalents Effect Of Exchange Rate On Cash And Cash Equivalents Net increase/(decrease) in cash and cash equivalents Cash And Cash Equivalents Period Increase Decrease Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Supplemental disclosures of cash flow information Supplemental Cash Flow Information [Abstract] Cash paid for taxes Income Taxes Paid Net Non-cash investing and financing activities: Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] Property and equipment received but unpaid Capital Expenditures Incurred But Not Yet Paid Common stock issued pursuant to acquisition Stock Issued1 Common stock issued in settlement of contingent consideration liability Common Stock Issued For Contingent Consideration Accounting Policies [Abstract] Basis of Presentation Basis Of Presentation And Significant Accounting Policies [Text Block] The entire disclosure for revenue recognition. Revenue Recognition [Abstract] Revenue Recognition Revenue Recognition [Text Block] Net Income/(Loss) Per Share Earnings Per Share [Text Block] Fair Value Disclosures [Abstract] Fair Value Fair Value Disclosures [Text Block] Investments All Other Investments [Abstract] Non-current Other Assets Investments And Other Noncurrent Assets [Text Block] Inventory Disclosure [Abstract] Inventories Inventory Disclosure [Text Block] Business Combinations [Abstract] Acquisition Business Combination Disclosure [Text Block] Goodwill And Intangible Assets Disclosure [Abstract] Acquired Intangibles Goodwill And Intangible Assets Disclosure [Text Block] Payables And Accruals [Abstract] Other Accrued Liabilities Accounts Payable And Accrued Liabilities Disclosure [Text Block] Commitments And Contingencies Disclosure [Abstract] Product Warranties, Indemnifications, and Contingencies Commitments Contingencies And Guarantees [Text Block] Debt Disclosure [Abstract] Debt Debt Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Share-Based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Segment Reporting [Abstract] Segment, Customers, and Geographic Information Segment Reporting Disclosure [Text Block] Equity [Abstract] Comprehensive Income Comprehensive Income Note [Text Block] Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Use of Estimates Use Of Estimates Foreign Currency Transactions and Foreign Exchange Contracts Foreign Currency Transactions And Translations Policy [Text Block] Computation of Basic and Diluted Net Income/(Loss) Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Financial Assets and Liabilities Measured at Fair Value on Recurring Basis Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block] Changes in Fair Value of Level 3 Financial Assets Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Text Block] Changes in Fair Value of Level 3 Contingent Consideration Liability Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Text Block] Auction rate securities investments. ARS Investments Auction Rate Securities Investments Table [Text Block] Inventories Schedule Of Inventory Current Table [Text Block] Summary of Provisional Amounts Recorded for Estimated Fair Values of Assets Acquired and Liabilities Assumed as of Acquisition Date Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Table [Text Block] Summary of Financial Information Presents Combined Results of Operations for Acquisition Business Acquisition Pro Forma Information [Text Block] Pro Forma Adjustments Used to Arrive at Pro Forma Net Income Business Acquisition Pro Forma Information Nonrecurring Adjustments Table [Text Block] Summary of Life, Gross Carrying Value of Acquired Intangible Assets, and Related Accumulated Amortization Schedule Of Finite Lived Intangible Assets Table [Text Block] Schedule of Expected Annual Aggregate Amortization Expense Scheduleof Finite Lived Intangible Assets Future Amortization Expense Table [Text Block] Other Accrued Liabilities Schedule Of Accrued Liabilities Table [Text Block] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Award Type Award Type [Axis] Equity Award Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Deferred stock units. Deferred Stock Units Outstanding [Member] Deferred Stock Units [Member] Market stock units. Market Stock Units Outstanding [Member] Market Stock Units [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-Based Compensation and Related Tax Benefit Recognized in Condensed Consolidated Statements of Income Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Balance of Outstanding and Exercisable Stock Options Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Balance and Aggregate Intrinsic Value of Stock Units Schedule Of Share Based Compensation Activity Table [Text Block] Shares Purchased, Weighted Average Purchase Price, Cash Received, and Aggregate Intrinsic Value for ESPP Schedule Of Share Based Compensation Employee Stock Purchase Plan Activity Table [Text Block] Net Revenue within Geographic Areas Based on Customers' Locations Revenue From External Customers By Geographic Areas Table [Text Block] Net Revenue from External Customers Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Text Block] Major Customers' as Percentage of Net Revenue Schedule Of Revenue By Major Customers By Reporting Segments Table [Text Block] Major customer accounts receivable as a percentage of accounts receivable. Major Customer Accounts Receivable as Percentage of Accounts Receivable Major Customer Accounts Receivable As Percentage Of Accounts Receivable Table [Text Block] Net gain (loss) on foreign currency transactions, which primarily related to recent acquisition Foreign Currency Transaction Gain Loss Realized Foreign currency forward contracts outstanding amount Derivative Asset Notional Amount Average exchange rate of foreign currency forward contracts Derivative Average Forward Exchange Rate1 Foreign currency transaction gain (loss) unrealized Foreign Currency Transaction Gain Loss Unrealized Numerator: Earnings Per Share Reconciliation [Abstract] Denominator: Weighted Average Number Of Shares Outstanding Diluted Disclosure Items [Abstract] Shares, basic Effect of dilutive share-based awards Incremental Common Shares Attributable To Share Based Payment Arrangements Shares, diluted Net income/(loss) per share: Earnings Per Share Basic And Diluted [Abstract] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Securities Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Share-Based Awards [Member] Stock Compensation Plan [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Common shares that were not included in computation of diluted net income (loss) per share Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Measurement Frequency Fair Value By Measurement Frequency [Axis] Fair Value, Measurement Frequency Fair Value Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value Measurements Recurring [Member] Fair Value, Hierarchy Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy Fair Value Measurements Fair Value Hierarchy [Domain] Level 1 [Member] Fair Value Inputs Level1 [Member] Level 2 [Member] Fair Value Inputs Level2 [Member] Level 3 [Member] Fair Value Inputs Level3 [Member] Asset Class Fair Value By Asset Class [Axis] Asset Class Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain] Money Market Funds [Member] Money Market Funds [Member] Auction Rate Securities [Member] Auction Rate Securities [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Total available-for-sale securities Available For Sale Securities Foreign currency contract assets Foreign Currency Contract Asset Fair Value Disclosure Contingent consideration liabilities recorded for business combinations Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Prepaid Expenses and Other Current Assets [Member] Prepaid Expenses And Other Current Assets [Member] Major Types of Debt and Equity Securities Major Types Of Debt And Equity Securities [Axis] Major Types of Debt and Equity Securities Major Types Of Debt And Equity Securities [Domain] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition Acquiree [Domain] Validity Sensors Inc. Validity Sensors, Inc [Member] Validity Sensors Inc [Member] Pacinian. Pacinian [Member] Pacinian [Member] Current Portion of Investments Available For Sale Securities Debt Securities Current Beginning balance Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value Net gain Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss Redemptions Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements Ending balance Fair value measurement with unobservable inputs reconciliation recurring basis liabilities cash settlements. Fair value measurement with unobservable inputs reconciliation recurring basis accretion and re-measurement. Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table] Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] Beginning balance Cash settlement of contingent consideration liability Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liabilities Cash Settlements Issuance of common stock in settlement of liability Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements Accretion and remeasurement Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Accretion And Remeasurement Ending balance Additional consideration Business Combination Contingent Consideration Arrangements Range Of Outcomes Value High Business combination contingent consideration arrangements contingent consideration obligation to former shareholders of acquiree. Additional consideration paid to former stockholders based on sales of products, due Business Combination Contingent Consideration Arrangements Contingent Consideration Obligation To Former Shareholders Of Acquiree Fair value measurements transfers into or out of level one. Fair value measurements transfers into or out of level two. Fair value measurements transfers into or out of level three. Transfer amount of assets or liabilities of level one Fair Value Measurements Transfers Into Or Out Of Level One Transfer amount of assets or liabilities of level two Fair Value Measurements Transfers Into Or Out Of Level Two Transfer amount of assets or liabilities of level three Fair Value Measurements Transfers Into Or Out Of Level Three Amortized cost and fair value debt securities. Amortized Cost And Fair Value Debt Securities [Abstract] Schedule Of Available For Sale Securities [Table] Schedule Of Available For Sale Securities [Table] Range Range [Axis] Range Range [Member] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Schedule of Available-for-sale Securities [Line Items] Schedule Of Available For Sale Securities [Line Items] Auction rate securities with fair value maturing within specified period. Auction rate securities with fair value having no stated maturity. Auction rate securities at investment grade. Auction rate securities below investment grade. Auction rate securities maturing year of specified amount one. Auction Rate Securities with fair value maturing from 2016 to 2018 Auction Rate Securities With Fair Value Maturing Within Specified Period Auction Rate Securities with fair value having no stated maturity Auction Rate Securities With Fair Value Having No Stated Maturity ARS investments, investment grade Auction Rate Securities At Investment Grade ARS investments, below investment grade Auction Rate Securities Below Investment Grade Maturity period one Auction Rate Securities Maturing Year Of Specified Amount One Investment securities at original cost basis. Cumulative other than temporary impairment included in retained earnings. Investments Debt And Equity Securities [Abstract] Investment Type Investment Type [Axis] Investments Investment Type Categorization [Member] Student loans. Student Loans [Member] Student Loans [Member] Credit linked notes. Credit Linked Notes [Member] Credit Linked Notes [Member] Preferred Stock [Member] Preferred Stock [Member] Municipals [Member] Municipal Bonds [Member] Original Cost Basis Investment Securities At Original Cost Basis Other-than- temporary Impairment in Retained Earnings Cumulative Other Than Temporary Impairment Included In Retained Earnings New Cost Basis Available For Sale Securities Amortized Cost Unrealized Gain/(Loss) Available For Sale Securities Accumulated Gross Unrealized Gain Loss Before Tax Fair Value Accretion on investment securities. Investment securities accretion Accretion On Investment Securities Raw materials Inventory Raw Materials Net Of Reserves Finished goods Inventory Finished Goods Net Of Reserves Total Inventories Business acquisition contingent consideration. Business acquisition contingent consideration at fair value working capital adjustment. Business combination contingent additional consideration transferred. Schedule Of Business Acquisitions By Acquisition [Table] Schedule Of Business Acquisitions By Acquisition [Table] Renesas sp drivers inc. Renesas SP Drivers Inc [Member] Renesas S P Drivers Inc [Member] Finite-Lived Intangible Assets by Major Class Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name Finite Lived Intangible Assets Major Class Name [Domain] Developed Technology [Member] Developed Technology Rights [Member] Customer Relationships [Member] Customer Relationships [Member] Supplier arrangement. Supplier Arrangement [Member] Supplier Arrangement [Member] Backlog [Member] Order Or Production Backlog [Member] In-Process Research and Development [Member] In Process Research And Development [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Acquisition closing effective date Business Acquisition Effective Date Of Acquisition1 Outstanding capital stock Business Acquisition Percentage Of Voting Interests Acquired Initial purchase price of acquisition Payments To Acquire Businesses Gross Foreign currency exchange rate (Japanese yen to U.S. dollar) Foreign Currency Exchange Rate Translation1 Indemnification hold back Business Acquisition Contingent Consideration Working capital hold back Business Acquisition Contingent Consideration At Fair Value Working Capital Adjustment Additional purchase price consideration Business Combination Contingent Additional Consideration Transferred Fair value of the consideration transferred totaled Business Combination Consideration Transferred1 Additional purchase consideration settled Business Combination Contingent Consideration Liability Inventory purchase obligation settled Long Term Purchase Commitment Amount Business combination provisional information initial accounting incomplete adjustment deferred tax liabilities. Business combination provisional information initial accounting incomplete adjustment current deferred tax assets. Decrease in intangible assets Business Combination Provisional Information Initial Accounting Incomplete Adjustment Intangibles Decrease in deferred tax liabilities Business Combination Provisional Information Initial Accounting Incomplete Adjustment Deferred Tax Liabilities Increase in current deferred tax assets Business Combination Provisional Information Initial Accounting Incomplete Adjustment Current Deferred Tax Assets Increase in goodwill Goodwill Purchase Accounting Adjustments Increase in provision for income taxes Increase Decrease In Income Taxes Business combination recognized identifiable assets acquired and liabilities assumed short term investments. Business combination recognized identifiable assets acquired and liabilities assumed income tax payable current. Business combination recognized identifiable assets acquired and liabilities assumed deferred tax liabilities net. Cash Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Cash And Equivalents Short-term deposit Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Short Term Investments Accounts receivable Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Receivables Current deferred tax assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deferred Tax Assets Current Inventory Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Inventory Property and equipment Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Property Plant And Equipment Acquired intangible assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangibles Other assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Noncurrent Assets Total identifiable assets acquired Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets Accounts payable Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Accounts Payable Income taxes payable Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Income Tax Payable Current Deferred tax liabilities Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deferred Tax Liabilities Net Other accrued liabilities Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Other Net identifiable assets acquired Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net Net assets acquired Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Net Discount rates applied to estimated cash flows for all intangible assets acquired. Intangible assets acquired Finite lived intangible assets weighted average useful life Finite Lived Intangible Asset Useful Life Identified intangible assets included discount rates Discount Rates Applied To Estimated Cash Flows For All Intangible Assets Acquired Operating income Revenue Business Acquisitions Pro Forma Revenue Net income/(loss) Business Acquisitions Pro Forma Net Income Loss Net income/(loss) per share - diluted Business Acquisition Pro Forma Earnings Per Share Diluted Business combination pro forma information cost of acquired buyer transaction costs. Business combination pro forma information amortization of debt issuance costs. Business combination pro forma information interest expense adjustments. Business combination pro forma information amortization of intangible assets adjustment. Business combination pro forma information income tax adjustment. Business combination pro forma information adjustment. Buyer transaction costs Business Combination Pro Forma Information Cost Of Acquired Buyer Transaction Costs Amortization of debt issuance costs Business Combination Pro Forma Information Amortization Of Debt Issuance Costs Adjustments Interest expense Business Combination Pro Forma Information Interest Expense Adjustments Intangible amortization Business Combination Pro Forma Information Amortization Of Intangible Assets Adjustment Income tax adjustment Business Combination Pro Forma Information Income Tax Adjustment Total Business Combination Pro Forma Information Adjustment Schedule Of Finite Lived Intangible Assets [Table] Schedule Of Finite Lived Intangible Assets [Table] Display driver developed technology. Display Driver Developed Technology [Member] Display Driver Developed Technology [Member] Finger print developed technology. Fingerprint Developed Technology [Member] Finger Print Developed Technology [Member] Thin touch developed technology. Thin Touch Developed Technology [Member] Thin Touch Developed Technology [Member] Licensed technology. Licensed Technology and Other [Member] Licensed Technology [Member] Patents [Member] Patents [Member] Finite-Lived Intangible Assets [Line Items] Finite Lived Intangible Assets [Line Items] Useful Life Intangible assets Finite Lived Intangible Assets Gross Accumulated amortization Finite Lived Intangible Assets Accumulated Amortization Acquired intangibles, net Finite lived intangible assets amortization expense year six. Finite lived intangible assets amortization expense after year six. Finite lived intangible assets future amortization expense for period of time yet to be determined. Remainder of 2015 Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year 2016 Finite Lived Intangible Assets Amortization Expense Year Two 2017 Finite Lived Intangible Assets Amortization Expense Year Three 2018 Finite Lived Intangible Assets Amortization Expense Year Four 2019 Finite Lived Intangible Assets Amortization Expense Year Five 2020 Finite Lived Intangible Assets Amortization Expense Year Six Thereafter Finite Lived Intangible Assets Amortization Expense After Year Six To be determined Finite Lived Intangible Assets Future Amortization Expense For Period Of Time Yet To Be Determined Customer obligation. Accrued liabilities for inventory purchase. Customer obligations Customer Obligation Inventory obligations Accrued Liabilities For Inventory Purchase Warranty Product Warranty Accrual Classified Current Other Other Sundry Liabilities Current Other accrued liabilities Minimum warranty period of products. Minimum warranty period of products Minimum Warranty Period Of Products Line of credit facility allowable requests for additional borrowing. Debt instrument amortization period. Debt Instrument [Table] Debt Instrument [Table] Short-term Debt, Type Short Term Debt Type [Axis] Short-term Debt, Type Short Term Debt Type [Domain] Letter of Credit [Member] Letter Of Credit [Member] Bridge Loan [Member] Bridge Loan [Member] Debt Instrument Debt Instrument [Axis] Debt Instrument, Name Debt Instrument Name [Domain] Term Loan. Term Loan [Member] Term Loan [Member] Credit Facility Credit Facility [Axis] Credit Facility Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Revolving credit facility and term loan. Revolving Credit Facility and Term Loan [Member] Revolving Credit Facility And Term Loan [Member] Variable Rate Variable Rate [Axis] Variable Rate Variable Rate [Domain] Federal Funds Effective Swap Rate [Member] Federal Funds Effective Swap Rate [Member] London Interbank Offered Rate (LIBOR) [Member] London Interbank Offered Rate L I B O R [Member] Base Rate [Member] Base Rate [Member] Debt Instrument, Redemption, Period Debt Instrument Redemption Period [Axis] Debt Instrument, Redemption, Period Debt Instrument Redemption Period [Domain] First four quarters. First Four Quarters [Member] First Four Quarters [Member] Next fourteen quarters. Next Fourteen Quarters [Member] Next Fourteen Quarters [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Line of credit facility amount Line Of Credit Facility Maximum Borrowing Capacity Increase in Line of credit facility Line Of Credit Facility Allowable Requests For Additional Borrowing Amount borrowed under revolving credit facility Line Of Credit Debt issuance cost Debt Issuance Costs Debt amortization period Debt Instrument Amortization Period Percentage of voting capital stock of certain foreign subsidiaries collateralized. Percentage of voting capital stock Percentage Of Voting Capital Stock Of Certain Foreign Subsidiaries Collateralized Description of Base Rate Debt Instrument Description Of Variable Rate Basis Basis spread on variable rate Debt Instrument Basis Spread On Variable Rate1 Amount of the final principal payment made at the maturity of the credit facility. Description of periodic payments Line Of Credit Facility Frequency Of Payments Quarterly payment beginning period Line Of Credit Facility Date Of First Required Payment1 Quarterly principal payment Line Of Credit Facility Periodic Payment Principal Final principal payment Line Of Credit Facility Final Principal Payment Revolving credit facility maturity period Line Of Credit Facility Expiration Date1 Commitment fee percentage of unused portion Line Of Credit Facility Unused Capacity Commitment Fee Percentage Operating covenant description Debt Instrument Covenant Description Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Cost of Revenue [Member] Cost Of Sales [Member] Research and Development [Member] Research And Development Expense [Member] Selling, General, and Administrative [Member] Selling General And Administrative Expenses [Member] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Total Income tax benefit on share-based compensation Employee Service Share Based Compensation Tax Benefit From Compensation Expense Stock Option Awards Outstanding, Balance at June 30, 2014 Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Stock Option Awards Outstanding, Granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Stock Option Awards Outstanding, Exercised Stock Issued During Period Shares Stock Options Exercised Stock Option Awards Outstanding, Forfeited Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Stock Option Awards Outstanding, Balance at March 31, 2015 Stock Option Awards Outstanding, Exercisable at March 31, 2015 Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Weighted Average Exercise Price, Balance at June 30, 2014 Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Weighted Average Exercise Price, Granted Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Weighted Average Exercise Price, Exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Weighted Average Exercise Price, Forfeited Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price Weighted Average Exercise Price, Balance at March 31, 2015 Weighted Average Exercise Price, Exercisable at March 31, 2015 Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Aggregate Intrinsic Value of Stock Option Awards, Balance at March 31, 2015 Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Aggregate Intrinsic Value of Stock Option Awards, Exercisable at March 31, 2015 Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 Share based compensation arrangement by share based payment award intrinsic value closing price. Employee Stock Option [Member] Employee Stock Option [Member] Vesting Vesting [Axis] Vesting Vesting [Domain] Share-based Compensation Award, Tranche One [Member] Share Based Compensation Award Tranche One [Member] Share-based Compensation Award, Tranche Two [Member] Share Based Compensation Award Tranche Two [Member] Share-based Compensation Award, Tranche Three [Member] Share Based Compensation Award Tranche Three [Member] Aggregate intrinsic value of stock option outstanding calculated using the closing price of common stock Share Based Compensation Arrangement By Share Based Payment Award Intrinsic Value Closing Price Share based compensation arrangement by share based payment award equity instruments other than options adjustments for performance results attained. Stock Unit Awards Outstanding, Balance at June 30, 2014 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Stock Unit Awards, Granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Stock Unit Awards, Performance adjustment Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Adjustments For Performance Results Attained Stock Unit Awards, Delivered Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Stock Unit Awards, Forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Stock Unit Awards Outstanding, Balance at March 31, 2015 Aggregate Intrinsic Value, Balance at March 31, 2015 Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding Shares withheld to meet statutory minimum tax withholding requirements Shares Paid For Tax Withholding For Share Based Compensation Shares valued withheld to meet statutory minimum tax withholding requirements Adjustments Related To Tax Withholding For Share Based Compensation Percentage of potential payout. Potential payout adjustment ratio. Vesting period, tranche Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Potential payout range Percentage Of Potential Payout Potential payout adjustment ratio Potential Payout Adjustment Ratio Unrecognized share-based compensation cost Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Unrecognized share-based compensation, period for recognition Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Plan Name Plan Name [Axis] Plan Name Plan Name [Domain] An employee stock purchase plan which allows employees to designate a portion of their base compensation, subject to legal restrictions and limitations, to purchase shares of common stock at 85% of the lesser of the FMV at the beginning of the offering period or the exercise date. The offering period extends for up to two years and includes four exercise dates occurring at six-month intervals. If the FMV at an exercise date is less than the FMV at the beginning of the offering period, the current offering period will terminate and a new two-year offering period will commence. Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Shares purchased Share Based Compensation Arrangement By Share Based Payment Award Shares Purchased For Award Weighted average purchase price Share Based Compensation Arrangement By Share Based Payment Award Per Share Weighted Average Price Of Shares Purchased Cash received Proceeds From Stock Plans Aggregate intrinsic value Income tax. Income tax. Income Tax [Table] Income Tax [Table] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] Japan [Member] J P Income Tax [Line Items] Income Tax [Line Items] Effective tax rate Effective Income Tax Rate Continuing Operations Increase in unrecognized tax benefits income tax penalties and interest accrued. Gross unrecognized tax benefits Unrecognized Tax Benefits Gross unrecognized tax benefits increased during the year Unrecognized Tax Benefits Period Increase Decrease Interest and penalties accrued related to unrecognized tax benefits Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued Increase in interest and penalties accrued related to unrecognized tax benefits Increase In Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued Expected reduction in income tax rate, percent. Expected effective income tax rate continuing operations. Expected reduction of corporate income tax Expected Reduction In Income Tax Rate Percent Expected national and local effective tax rate percentage Expected Effective Income Tax Rate Continuing Operations Number of product categories. Number of operating segments Number Of Operating Segments Number of product Number Of Product Categories Schedule Of Revenues From External Customers And Long Lived Assets [Table] Schedule Of Revenues From External Customers And Long Lived Assets [Table] China [Member] C N United States [Member] U S Taiwan [Member] T W South Korea [Member] K R Other foreign country. Other [Member] Other Foreign Country [Member] Revenues from External Customers and Long-Lived Assets [Line Items] Revenues From External Customers And Long Lived Assets [Line Items] Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Table] Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Table] Products and Services Product Or Service [Axis] Products and Services Products And Services [Domain] Mobile product applications. Mobile Product Applications [Member] Mobile Product Applications [Member] Pc product applications. PC Product Applications [Member] Pc Product Applications [Member] Revenue from External Customer [Line Items] Entity Wide Information Revenue From External Customer [Line Items] Schedule Of Entity Wide Revenue By Major Customers By Reporting Segments [Table] Schedule Of Entity Wide Revenue By Major Customers By Reporting Segments [Table] Concentration Risk Benchmark Concentration Risk By Benchmark [Axis] Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Sales Revenue, Net [Member] Sales Revenue Net [Member] Concentration Risk Type Concentration Risk By Type [Axis] Concentration Risk Type Concentration Risk Type [Domain] Customer Concentration Risk [Member] Customer Concentration Risk [Member] Customer Major Customers [Axis] Customer Name Of Major Customer [Domain] Customer A. Customer A [Member] Customer A [Member] Customer B. Customer B [Member] Customer B [Member] Customer C. Customer C [Member] Customer C [Member] Customer D. Customer D [Member] Customer D [Member] Revenue, Major Customer [Line Items] Entity Wide Revenue Major Customer [Line Items] Concentration Risk, Percentage Concentration Risk Percentage1 Accounts Receivable [Member] Accounts Receivable [Member] Credit Concentration Risk [Member] Credit Concentration Risk [Member]