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 Entity Registrant Name Entity Registrant Name Trading Symbol Trading Symbol Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well Known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Public Float Entity Public Float Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] Current Assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Accounts receivable, net of allowances of $2.9 and $0.9 at June 2015 and 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, net 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 LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities And Stockholders Equity [Abstract] 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 Commitments and contingencies Commitments And Contingencies Stockholders' Equity: Stockholders Equity [Abstract] Preferred stock: $0.001 par value; 10,000,000 shares authorized; no shares issued and outstanding Preferred Stock Value Common stock: $0.001 par value; 120,000,000 shares authorized, 58,249,107 and 55,911,513 shares issued, and 37,529,608 and 36,863,802 shares outstanding, at June 2015 and 2014, respectively Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Treasury stock: 20,719,499 and 19,047,711 common shares at June 2015 and 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 Preferred stock, par value Preferred Stock Par Or Stated Value Per Share Preferred stock, shares authorized Preferred Stock Shares Authorized Preferred stock, shares issued Preferred Stock Shares Issued Preferred stock, shares outstanding Preferred Stock Shares Outstanding 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 Gain on sale of property and equipment Gain Loss On Sale Of Property Plant Equipment Total operating expenses Operating Expenses Operating income Operating Income Loss Interest income Interest And Other Income Interest expense Interest Expense Impairment recovery on investments, net Gain Loss On Investments Income 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 Net Income Loss Net income per share: Earnings Per Share [Abstract] Basic Earnings Per Share Basic Diluted Earnings Per Share Diluted Shares used in computing net income 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 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 Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Comprehensive income Comprehensive Income Net Of Tax Payroll taxes for deferred stock units. Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock [Member] Common Stock [Member] Additional Paid-in Capital [Member] Additional Paid In Capital [Member] Treasury Stock [Member] Treasury Stock [Member] Accumulated Other Comprehensive Income/ (Loss) [Member] Accumulated Other Comprehensive Income [Member] Retained Earnings [Member] Retained Earnings [Member] Statement [Line Items] Statement [Line Items] Balance, value Balance, shares Shares Issued Net unrealized gain on available-for-sale investments Issuance of common stock for share-based award compensation plans Stock Issued During Period Value Share Based Compensation Issuance of common stock for share-based award compensation plans, shares Stock Issued During Period Shares Share Based Compensation Issuance of common stock for acquisition Stock Issued During Period Value Acquisitions Issuance of common stock for acquisition, shares Stock Issued During Period Shares Acquisitions Issuance of common stock for conversion of notes payable Stock Issued During Period Value Conversion Of Convertible Securities Issuance of common stock for conversion of notes payable, shares Stock Issued During Period Shares Conversion Of Convertible Securities Payroll taxes for deferred stock units Payroll Taxes For Deferred Stock Units Purchases of treasury stock Treasury Stock Value Acquired Cost Method Tax benefit associated with share-based awards Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation Share-based compensation Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Balance, value Balance, shares Increase (decrease) in acquisition related liabilities. Payroll taxes for deferred stock and market stock units. Noncash or part noncash acquisition contingent consideration. Common stock issued for contingent consideration Common stock issued upon conversion of debt Statement Of Cash Flows [Abstract] Cash flows from operating activities Net Cash Provided By Used In Operating Activities [Abstract] 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 of property and equipment Asset Impairment Charges Non-cash interest income Other Noncash Income Amortization of debt issuance costs Amortization Of Financing Costs Impairment recovery on investments, net 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 Acquisition related liabilities Increase Decrease In Acquisition 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 Proceeds from sale of property and equipment Proceeds From Sale Of Property Plant And Equipment Acquisition of businesses, 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 Payment of debt Repayments Of Debt 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 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 Continuing Operations 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 interest Interest Paid 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 Contingent consideration liability pursuant to acquisition Noncash Or Part Noncash Acquisition Contingent Consideration Common stock issued in settlement of contingent consideration liability Common Stock Issued For Contingent Consideration Common stock issued upon conversion of notes payable Common Stock Issued Upon Conversion Of Debt Accounting Policies [Abstract] Organization and Summary of Significant Accounting Policies Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Net Income Per Share Earnings Per Share [Text Block] The entire disclosure for auction rate securities. Text Block [Abstract] Auction Rate Securities Auction Rate Securities [Text Block] Property Plant And Equipment [Abstract] Property and Equipment Property Plant And Equipment Disclosure [Text Block] Business Combinations [Abstract] Acquisitions Business Combination Disclosure [Text Block] Goodwill And Intangible Assets Disclosure [Abstract] Acquired Intangibles Goodwill And Intangible Assets Disclosure [Text Block] Debt Disclosure [Abstract] Debt Debt Disclosure [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure [Text Block] Equity [Abstract] Stockholders' Equity Stockholders Equity Note Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Share-Based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Compensation And Retirement Disclosure [Abstract] Employee Benefit Plans Pension And Other Postretirement Benefits Disclosure [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] Legal Proceedings Legal Matters And Contingencies [Text Block] Organization and Basis of Presentation Consolidation Policy [Text Block] Use of Estimates Use Of Estimates Disclosure of accounting policy for cash equivalents and investments. Cash Equivalents and Investments Cash Equivalents And Investments Policy [Text Block] Fair Value Fair Value Measurement Policy Policy [Text Block] Disclosure of accounting policy for concentration of credit risk. Concentration of Credit Risk Concentration Of Credit Risk Policy [Text Block] Disclosure of accounting policy for other concentrations. Other Concentrations Other Concentrations Policy [Text Block]