Document and Entity Information Statement [Table] Statement [Line Items] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Current Reporting Status Entity Filer Category Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Condensed Consolidated Balance Sheets Assets [Abstract] Assets Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents Cash and Cash Equivalents Short-term Investments Short-term investments Restricted Cash and Cash Equivalents, Current Restricted cash Accounts and Other Receivables, Net, Current Accounts receivable, net of allowance for doubtful accounts of $864 and $709 as of March 31, 2016 and June 30, 2015 respectively Inventory, Net Inventories Total inventories Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Deferred Costs, Current Deferred cost of revenue Assets, Current Total current assets Property, Plant and Equipment, Net Property and equipment, net Property and equipment, net Goodwill Balance at the end of the period Balance at the beginning of the period Goodwill Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Deferred Costs, Noncurrent Deferred cost of revenue Other Assets, Noncurrent Other assets Assets Total assets Liabilities and Equity [Abstract] Liabilities and stockholders' equity Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Employee-related Liabilities, Current Accrued compensation Other Accrued Liabilities, Current Other accrued liabilities Long-term Debt, Current Maturities Short-term debt Customer Advances, Current Customer advances Deferred Revenue, Current Deferred revenue Liabilities, Current Total current liabilities Liabilities, Noncurrent [Abstract] Long-term liabilities: Other Liabilities, Noncurrent Long-term other liabilities Deferred Revenue, Noncurrent Deferred revenue Long-term Debt, Excluding Current Maturities Long-term debt Liabilities Total liabilities Commitments and Contingencies. Commitments and contingencies (Note 5) Stockholders' Equity Attributable to Parent [Abstract] Stockholders' Equity: Preferred Stock, Value, Issued Preferred stock, $0.001 par value; authorized: 5,000,000 shares; no shares issued and outstanding Common Stock, Value, Issued Common stock, $0.001 par value; authorized: 200,000,000 shares as of March 31, 2016 and June 30, 2015, respectively; issued and outstanding: 80,924,480 and 79,477,838 shares at March 31, 2016 and June 30, 2015, respectively Additional Paid in Capital, Common Stock Additional paid-in capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Retained Earnings (Accumulated Deficit) Accumulated deficit Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Allowance for Doubtful Accounts Receivable, Current Accounts receivable, allowance for doubtful accounts (in dollars) Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, authorized shares Preferred Stock, Shares Issued Preferred stock, shares issued Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, authorized shares Common Stock, Shares, Issued Common stock, issued shares Common Stock, Shares, Outstanding Common stock, outstanding shares Condensed Consolidated Statements of Operations and Comprehensive Loss Revenue, Net [Abstract] Net revenue: Sales Revenue, Goods, Net Products Sales Revenue, Services, Net Services Revenue, Net Revenue Total net revenue Cost of Goods and Services Sold [Abstract] Cost of revenue: Cost of Goods Sold Cost of products Cost of Services Cost of services Cost of Revenue. Total cost of revenue Gross Profit Gross profit Operating Expenses [Abstract] Operating expenses: Research and Development Expense Research and development Selling and Marketing Expense Selling and marketing General and Administrative Expense General and administrative Operating Expenses Total operating expenses Operating Income (Loss) Income (loss) from operations Other Nonoperating Income (Expense) Other expense, net Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income (loss) before provision for income taxes Income Tax Expense (Benefit) Provision for income taxes Income (Loss) from Continuing Operations Attributable to Parent Net loss Net income (loss) Earnings Per Share [Abstract] Net income (loss) per share Earnings Per Share, Basic Basic (in dollars per share) Earnings Per Share, Diluted Diluted (in dollars per share) Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average common shares used in computing loss per share Denominator: Weighted Average Number of Shares Outstanding, Basic Basic (in shares) Weighted average shares used to compute basic income (loss) per share Weighted Average Number of Shares Outstanding, Diluted Diluted (in shares) Weighted average shares used to compute diluted net income (loss) per share Net Income (Loss) Available to Common Stockholders, Basic Net income (loss) Net income (loss) used to compute basic and diluted net income (loss) per share Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Foreign currency translation adjustment Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Unrealized gain (loss) on investments, net of tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income (loss) Condensed Consolidated Statements of Cash Flows Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash Flows From Operating Activities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Share-based Compensation. Share-based compensation Amortization of Financing Costs Amortization of debt issuance costs Accretion (Amortization) of Discounts and Premiums, Investments Amortization and accretion of discount and premium on investments Accretion Expense Accretion of interest on debt Provision for Doubtful Accounts Recovery of (provision for) bad debt, net Inventory Write-down Provision for write-down of inventories Gain (Loss) on Disposition of Property Plant Equipment Loss on disposal of property and equipment Extinguishment of Debt, Gain (Loss), Net of Tax Loss on extinguishment of debt Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities: Increase (Decrease) in Restricted Cash for Operating Activities Restricted cash Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Inventories Inventories Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Increase (Decrease) in Deferred Charges Deferred cost of revenue Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Accrued Liabilities Accrued liabilities Increase (Decrease) in Customer Advances Customer advances Increase (Decrease) in Deferred Revenue Deferred revenue Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash Flows From Investing Activities Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment, net Payments to Acquire Marketable Securities Purchases of investments Proceeds from Sale and Maturity of Marketable Securities Sales and maturities of investments Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash (used in) provided by investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash Flows From Financing Activities Proceeds from Stock Plans Proceeds from employee stock plans Payments Related to Tax Withholding for Share-based Compensation Taxes paid related to net share settlement of equity awards Repayments of Debt Payments made to note holders Proceeds from Debt, Net of Issuance Costs Proceeds from debt, net of costs Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash (used in) provided by financing activities Effect of Exchange Rate on Cash and Cash Equivalents, Continuing Operations Effect of exchange rate changes on cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net (decrease) increase in cash and cash equivalents Summary of Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Summary of Significant Accounting Policies balance sheet disclosures Balance Sheet Components Supplemental Balance Sheet Disclosures [Text Block] Balance Sheet Components Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Goodwill and Intangible Assets Financial Instruments Fair Value Disclosures [Text Block] Financial Instruments Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Share-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Share-Based Compensation Debt Debt Disclosure [Text Block] Debt Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Accumulated Other Comprehensive Loss Consolidation, Policy [Policy Text Block] Basis of Presentation and Principles of Consolidation New Accounting Pronouncements, Policy [Policy Text Block] Accounting Standard Updates Use of Estimates, Policy [Policy Text Block] Use of Estimates Concentration Risk, Credit Risk, Policy [Policy Text Block] Concentration of Credit and Other Risks Revenue Recognition, Policy [Policy Text Block] Revenue Recognition Earnings Per Share, Policy [Policy Text Block] Net Income (Loss) Per Common Share Debt, Policy [Policy Text Block] Outstanding Convertible Notes - Diluted Share Impact Segment Reporting, Policy [Policy Text Block] Segment Information Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of reconciliation of the numerator and denominator used in the calculation of basic and diluted loss per share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of all potentially dilutive securities excluded from the computation of net loss per share Revenue from External Customers by Geographic Areas [Table Text Block] Summary of revenue by geographic region Long-lived Assets by Geographic Areas [Table Text Block] Schedule of geographic areas in which the Company has long lived tangible assets Schedule of Inventory, Current [Table Text Block] Schedule of inventories Property, Plant and Equipment [Table Text Block] Schedule of property and equipment, net Schedule of Goodwill [Table Text Block] Schedule of goodwill Schedule of Intangible Assets and Goodwill [Table Text Block] Schedule of intangible assets associated with completed acquisitions Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Schedule of estimated future amortization expense of purchased intangible assets Investments in Debt and Equity Instruments, Cash and Cash Equivalents, Unrealized and Realized Gains (Losses) [Text Block] Summary of amortized cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category for cash, cash equivalents and short-term investments Investments Classified by Contractual Maturity Date [Table Text Block] Schedule of contractual maturities of available-for-sale securities Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block] Summary of carrying values and estimated fair values of short-term and long-term debt Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Summary of share-based compensation charges Schedule of Debt [Table Text Block] Schedule of carrying value of Notes Tabular disclosure of interest expense and the effective interest rate on the convertible debt. Schedule of Interest on Convertible Debt [Table Text Block] Summary of interest expense on Notes Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of accumulated other comprehensive loss in the equity section of the balance sheets Concentration Risk [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Accounts Receivable [Member] Total accounts receivable Sales Revenue Net [Member] Total net revenue Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Credit Concentration Risk [Member] Credit concentration risk Customer [Axis] Name Of Major Customer [Domain] Customer [Domain] Represents information related to major customers accounting for more than ten percent of the total accounts receivable. Major Customers [Member] Major customers Range [Axis] Range [Member] Range [Domain] Minimum [Member] Minimum Concentration Risk [Line Items] Concentration of Credit Risk and Other Risks and Uncertainties Represents the number of significant customers who exceeded the threshold in order to determine a concentration risk. Concentration Risk Number of Significant Customers Number of significant customers Concentration Risk, Percentage Percentage of concentration risk Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities Name [Domain] Antidilutive Securities, Name [Domain] Employee Stock Option [Member] Stock options Represents information pertaining to the restricted stock units, performance-based stock units and market stock units of the entity. Restricted Stock Units Performance Based Stock Units And Market Stock Units [Member] RSUs, PSUs and MSUs Long-term Debt, Type [Axis] Longterm Debt Type [Domain] Long-term Debt, Type [Domain] Represents information pertaining to the 3.75% Convertible Senior Notes, due August 2016. Percent3.75 Convertible Debt Due August2016 [Member] 3.75% Convertible Notes Represents information pertaining to the 3.50% Convertible Senior Notes, due February 2018. Percent3.50 Convertible Debt Due February2018 [Member] 3.50% Convertible Notes Represents information pertaining to the new 3.50 percent Series A Convertible Senior Notes due 2018. New Percent3.50 Series A Convertible Senior Notes Due2018 [Member] 3.50% Series A Convertible Notes Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Anti-dilutive securities excluded from computation of earnings per share Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Numerator: Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted average effect of dilutive awards Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Potentially dilutive shares outstanding Weighted average effect of convertible debt Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Anti-dilutive securities excluded from the computation of diluted net loss per share (in shares) Debt Instrument, Interest Rate, Stated Percentage Interest rate (as a percent) Represents the number of shares that the holder of the debt instrument would receive if the debt was converted to equity. Debt Instrument Convertible Number of Shares Conversion shares outstanding principal amount excluded in the potentially diluted shares Schedule of Revenues from External Customers and Long-Lived Assets [Table] Geographical [Axis] Segment Geographical [Domain] Geographical [Domain] Americas [Member] Americas Regions of Europe, Middle East, India and Africa. Europe Middle East India And Africa [Member] Europe, Middle East, India and Africa J [P] Japan Revenues from External Customers and Long-Lived Assets [Line Items] Segment Information Number of Operating Segments Number of operating segments Long-Lived Assets Long lived assets Property, Plant and Equipment, Type [Axis] Property Plant And Equipment Type [Domain] Property, Plant and Equipment, Type [Domain] Furniture And Fixtures [Member] Furniture and fixtures Office Equipment [Member] Computer and office equipment Software And Software Development Costs [Member] Software Leasehold Improvements [Member] Leasehold improvements Machinery And Equipment [Member] Machinery and equipment Construction In Progress [Member] Construction in progress Financing Receivable, Net [Abstract] Financing receivables Financing Receivable, Gross Financing receivables Capital Leases, Net Investment in Direct Financing and Sales Type Leases Capital leases Accounts Receivable, Net, Noncurrent Accounts receivable with contractual maturities of more than one year Allowance for Doubtful Accounts Receivable, Noncurrent Allowance for doubtful accounts related to financing receivables Inventory, Net [Abstract] Inventories Inventory, Raw Materials, Net of Reserves Raw materials Inventory, Work in Process, Net of Reserves Work-in-process Inventory, Finished Goods, Net of Reserves Finished goods Property, Plant and Equipment [Abstract] Property and equipment, net Property, Plant and Equipment, Gross Property and equipment, gross Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less: Accumulated depreciation The amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement in the current period. Depreciation, Depletion and Amortization Expense Depreciation expense Disclosure of the carrying value of amortizable finite-lived intangible assets, including disclosure of the carrying value of indefinite-lived intangible assets not subject to amortization, excluding goodwill, in total and by major class. Finite Lived and Indefinite Lived Intangible Assets by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite Lived Intangible Assets Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Developed Technology Rights [Member] Developed technology Maximum [Member] Maximum Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Finite Lived and Indefinite Lived Intangible Assets by Major Class [Line Items] Goodwill and Purchased Intangible Assets Goodwill [Roll Forward] Changes in the carrying amount of goodwill The increase (decrease) to the recorded value of goodwill for foreign currency translation and other adjustments. Goodwill Translation and other Adjustments Currency translation Goodwill, Impairment Loss Impairment of goodwill Finite-Lived Intangible Asset, Useful Life Useful Lives Intangible Assets, Gross (Excluding Goodwill) Gross Carrying Amount Finite-Lived Intangible Assets, Accumulated Amortization Accumulated Amortization Finite-Lived Intangible Assets, Net Net Amount Amortization of Intangible Assets Amortization expense Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Estimated future amortization expense of purchased intangible assets Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2016 (remaining 3 months) Finite-Lived Intangible Assets, Amortization Expense, Year Two 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2018 Investment Holdings [Table] Fair Value, Hierarchy [Axis] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value Inputs Level1 [Member] Level 1 Fair Value Inputs Level2 [Member] Level 2 Cash and Cash Equivalents [Axis] Restricted Cash And Cash Equivalents Cash And Cash Equivalents [Member] Cash and Cash Equivalents [Domain] Cash [Member] Cash. Money Market Funds [Member] Money market funds Investment Type [Axis] Investment Type Categorization [Member] Investments [Domain] Commercial Paper [Member] Commercial paper Agency Securities [Member] U.S. agency securities U S Treasury Bill Securities [Member] U.S. treasury bills Foreign Government Debt Securities [Member] Non-U.S. government securities Corporate Note Securities [Member] Corporate notes Investment Holdings [Line Items] Cash, cash equivalents and short-term investments Available-for-sale Securities, Amortized Cost Basis Amortized Cost Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Gains Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Gross Unrealized Losses Available-for-sale Securities Available-for-sale Securities Other than Temporary Impairment Losses, Investments, Available-for-sale Securities Other-than-temporary impairments associated with credit losses Available-for-sale Securities, Debt Maturities [Abstract] Contractual maturities of available-for-sale securities Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] Amortized Cost Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis Due in 1 year or less Represents the amount of available-for-sale debt securities at cost, net of adjustments, maturing in the second rolling twelve months following the latest balance sheet presented. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments. Available for Sale Securities Debt Maturities Rolling Year One Through Two Years Amortized Cost Due in 1-2 years Represents the balance of cash and cash equivalents and the amortized cost of available for sale securities. Cash and Cash Equivalents Amortized Cost of Available for Sale Securities Total Amortized Cost Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] Fair Value Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value Due in 1 year or less Amount of available-for-sale debt securities at fair value maturing in the second rolling twelve months following the latest balance sheet presented. Available for Sale Securities Debt Maturities Rolling Year One Through Two Years Fair Value Due in 1-2 years Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Fair Value Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value Measurements Nonrecurring [Member] Non-recurring basis Measurement Basis [Axis] Fair Value Disclosure Item Amounts [Domain] Fair Value Measurement [Domain] Carrying Reported Amount Fair Value Disclosure [Member] Carrying Value Estimate Of Fair Value Fair Value Disclosure [Member] Fair Value Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair value measurement Liabilities, Fair Value Disclosure, Nonrecurring Long term debt Loss Contingencies [Table] Litigation Case [Axis] Litigation Case Type [Domain] Litigation Case [Domain] Represents the litigation relating to misappropriation of trade secrets filed by supplier of TomoTherapy against the entity. Rotary Systems [Member] Rotary Systems Disclosures relating to Cowealth Medical. Cowealth Medical [Member] Cowealth Medical Legal Entity [Axis] Entity [Domain] Entity [Domain] Parent Company [Member] Parent Company Loss Contingencies [Line Items] Contingencies Loss Contingency, Damages Sought, Value Claim for damages Counterclaim filed for damages. Damages Counterclaim Counterclaim for damages filed by the company Loss Contingency, Damages Awarded, Value Awarded value for the damages Represents the percentage of interest per annum on awarded amount. Percentage Of Interest On Awarded Amount Percentage of interest on awarded amount Represents the number of the days for which interest is not accrued on awarded amount after date of award. Period For Which Interest Not Accrued After Date Of Award Period for interest not accrued after date of award Litigation Settlement, Expense Recorded charge for awarded amount Represents the amount of additional amount recorded for damages awarded to the plaintiff in the legal matter. Loss Contingency Damages Additional Value Additional amount recorded Loss Contingency Accrual Accrual amount of litigation Represents the period granted by court for identification of alleged trade secrets with specificity or face dismissal of claim with prejudice. Period to Identify Alleged Trade Secrets with Specificity or Face Dismissal of Claim with Prejudice Period to identify alleged trade secrets with specificity or face dismissal of claim with prejudice Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost Of Sales [Member] Cost of revenue Research And Development Expense [Member] Research and development Selling And Marketing Expense [Member] Selling and marketing General And Administrative Expense [Member] General and administrative Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Share-based compensation charges Allocated Share-based Compensation Expense Share-based compensation expense Schedule of Long-term Debt Instruments [Table] Convertible Debt [Member] 3.75% Convertible Note and 3.50% Convertible Note Information pertaining to different options available when variable interest rates are discretionary. Variable Rate Option [Axis] Information pertaining to different options available when variable interest rates are discretionary. Variable Rate Option [Domain] Variable Rate Option [Domain] Information pertaining to the first option of variable interest rates when such rates are discretionary. Variable Rate Option1 [Member] Option (i) Information pertaining to the second option of variable interest rates when such rates are discretionary. Variable Rate Option2 [Member] Option (ii) Debt Instrument [Line Items] Debt Debt Instrument, Face Amount Aggregate principal amount of debt issued Loans Receivable, Basis Spread on Variable Rate Margin on interest rate Debt Instrument, Periodic Payment Quarterly installment payment Represents the number of days a debt instrument matures after (before) a reference instrument. Debt Instrument Maturity Time From Reference Instrument Debt instrument maturity before reference instrument maturity date Proceeds from Issuance of Long-term Debt Proceeds from debt, net of costs Debt Issuance Cost Offering costs Information pertaining to discounts granted and commissions paid in the issuance of debt. Debt Instrument Discount And Commission Costs Initial purchaser's discount and commission Debt Instrument, Convertible, Remaining Discount Amortization Period Amortization period Represents the length of time over which the entity's EBITDA is monitored for covenant compliance. Period Of Adjusted EBITDA Used To Determine Loan Covenant Compliance EBITDA Monitoring Period Represents the prepayment penalty, as a percentage, if the debt instrument is repaid or accelerated within the first year. Debt Instrument Prepayment Penalty, Year One Prepayment premium if loan repaid or accelerated within the first year Represents the prepayment penalty, as a percentage, if the debt instrument is repaid or accelerated within the second year. Debt Instrument Prepayment Penalty, Year Two Prepayment premium if loan repaid or accelerated within the second year Represents the amortization period for financing costs. Debt Instrument, Convertible, Financing Costs Amortization Period Debt issuance costs, amortization period Represents the number of trading days within a period of 30 consecutive trading days the closing price of the entity's common stock must exceed the applicable conversion price in order for the debt instruments to be convertible. Debt Instrument, Conversion Obligation, Common Stock Closing Sales Price, Number of Trading Days Number of days within 30 consecutive trading days in which the closing price of the entity's common stock must exceed the conversion price for the notes to be convertible into common stock Debt Instrument, Convertible, Threshold Consecutive Trading Days Number of consecutive trading days during which the closing price of the entity's common stock must exceed the conversion price for at least 20 days in order for the notes to be convertible into common stock Represents the percentage of the closing sales price of the entity's common stock for 20 or more trading days within 30 consecutive trading days that the closing sales price of the entity's common stock must exceed the conversion price in order for the debt instruments to be convertible. Debt Instrument, Conversion Obligation, Common Stock Closing Sales Price as Percentage of Conversion Price Percentage of the closing sales price of the entity's common stock that the conversion price must exceed in order for the notes to be convertible Represents the number of consecutive business days immediately after any five consecutive trading day period during the debt instrument measurement period. Debt Instrument, Conversion Obligation, Number of Consecutive Business Days after Consecutive Trading Day Period Number of consecutive business days immediately after any five consecutive trading day period during the note measurement period Represents the number of consecutive trading days prior to the five consecutive business days during the debt instrument measurement period. Debt Instrument, Conversion Obligation, Period of Consecutive Trading Days Number of consecutive trading days before five consecutive business days during the note measurement period Represents the principal amount of notes used as denominator for purposes of computing the conversion ratio of convertible debt. Debt Instrument, Principal Amount Denomination for Conversion into Common Stock Principal amount used for debt instrument conversion ratio Represents the percentage of the trading price of each debt instrument to the product of the sale price of the entity's common stock and the conversion rate of the debt instrument that the trading price must be less than in order for the debt instruments to be convertible. Debt Instrument, Conversion Obligation, Trading Price as Percentage of Product Common Stock Closing Sale Price and Conversion Rate Percentage of the trading price to the product of the sale price of the entity's common stock and the conversion rate Represents the number of working days preceding maturity date for delivery of shares or payment of cash. Number of Working Days Preceding Maturity Date for Delivery of Shares or Payment of Obligation Number of working days preceding maturity date for delivery of shares or payment of cash Debt Instrument, Convertible, Conversion Ratio Conversion rate, number of shares to be issued per $1000 of principal amount (in shares) Debt Instrument, Convertible, Conversion Price Conversion price (in dollars per share) Represents the price at which the debt may be repurchased, as a percentage of the principal amount if the entity undergoes a change of control. Debt Instrument, Repurchase Price Due to Change in Control as Percentage of Principal Amount Repurchase price, as percentage of principal amount, if company undergoes change of control Represents the percentage of the closing sales price of the entity's common stock for 20 or more trading days within 30 consecutive trading days that the closing sales price of the entity's common stock must exceed the conversion price in order for the debt instruments to be redeemable. Debt Instrument, Redemption Terms, Common Stock Closing Sales Price as Percentage of Conversion Price Percentage of the closing sales price of the entity's common stock that the conversion price must exceed in order for the notes to be redeemable Represents the number of trading days within a period of 30 consecutive trading days the closing price of the entity's common stock must exceed the applicable conversion price in order for the debt instruments to be redeemable. Debt Instrument, Redemption Terms Common Stock Closing Sales Price, Number of Trading Days Number of days within 30 consecutive trading days in which the closing price of the entity's common stock must exceed the conversion price for the notes to be redeemable Represents the number of consecutive trading days during which the closing price of the entity's common stock must exceed the applicable conversion price for at least 20 days in order for the debt instruments to be redeemable. Debt Instrument, Redemption Terms, Number of Consecutive Trading Days Number of consecutive trading days during which the closing price of the entity's common stock must exceed the conversion price for at least 20 days in order for the notes to be redeemable Long-term Debt Net carrying amount The discount rate applied to future contractual cash flows to determine the initial carrying value of a debt instrument. Debt Instrument, Discount Rate Percent Discount rate on liability component (as a percent) Represents the carrying amount of the equity conversion component of the debt instrument. Carrying Amount Of Equity Conversion Component Carrying amount of the equity conversion component Represents the portion of debt issuance costs and initial discount allocated to the equity component of the convertible debt. Debt Instrument, Convertible Debt Issuance Cost and Discount Allocated to Equity Component Debt issuance costs and discount allocated to equity conversion component Debt Instrument, Repurchased Face Amount Principal amount of the Notes retired Repayments of Convertible Debt Cash paid to Participating Holders in connection with debt refinancing Long-term Debt, Gross Principal amount of the Notes Gains (Losses) on Extinguishment of Debt Charge associated with repurchase of notes Amount due to the convertible note value allocation between debt and equity components. Equity Conversion Component Aggregate principal amount of debt refinanced Represents the amount of the payment to the convertible note holders to modify the notes. Convertible Note Holder Payment Payment to the convertible note holders to modify the notes Ratio applied to the conversion of debt instrument into other form of debt divided by debt principal amount. Debt Conversion Rate Conversion rate, amount of debt to be issued per $1000 of principal amount Represents the price at which the debt may be repurchased, as a percentage of the principal amount in the event of a "fundamental change," as defined in the Indenture. Debt Instrument, Repurchase Price Due to Fundamental Change Repurchase price, as a percentage of the principal amount, in the event of a fundamental change, as defined in Indenture Represents the portion of cash amount paid allocated to debt discount of the convertible debt. Debt Instrument Convertible Debt Repayments Allocated to Debt Discount Portion of cash amount paid allocated to debt discount Represents the portion of cash amount paid allocated to equity component of the convertible debt. DebtInstrumentConvertibleDebtRepaymentsAllocatedToEquityComponent Portion of cash amount paid allocated to equity component Unamortized Debt Issuance Expense Unamortized debt costs Debt Instrument, Unamortized Discount Unamortized debt discount Interest Expense, Debt, Excluding Amortization Interest expense related to contractual interest coupon Amortization of Debt Discount (Premium) Interest expense related to amortization of debt discount Amount of noncash expense included in interest expense to issue convertible debt and obtain financing associated with the related convertible debt instruments. Amortization Of Financing Costs, Convertible Debt Interest expense related to amortization of debt issuance costs Interest Expense, Debt Total interest expense recognized Accumulated Other Comprehensive Income Loss [Table] Accumulated Other Comprehensive Income Loss [Line Items] Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Net unrealized gain (loss) on short-term investments Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Cumulative foreign currency translation adjustment Defined Benefit Plan, Benefit Obligation Defined benefit pension obligation Adjustments for New Accounting Pronouncements [Axis] Type Of Adoption [Member] Type of Adoption [Domain] Information pertaining to forecasted adjustments required for accounting standard updates that are not yet effective. Adjustments For New Accounting Principle Not Yet Effective [Member] Recent Accounting Standard Update Not Yet Effective Adjustments For New Accounting Principle Early Adoption [Member] Accounting Standard Update Recently Adopted Asia Pacific [Member] Asia-Pacific Represents information pertaining to the first lien senior secured term loan with Cerberus Capital Management, L.P. First Lien Secured Term Loan [Member] Secured Loan Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Represents the one-month London interbank offered rate. One Month Libor [Member] One month LIBOR London Interbank Offered Rate L I B O R [Member] LIBOR In the United States, the federal funds rate is the interest rate at which depository institutions lend reserve balances to other depository institutions overnight, on an uncollateralized basis. Federal Funds Rate [Member] Federal Funds Rate Prime Rate [Member] US Prime Rate Information related to the reference security when debt or equity conditions are contingent upon contractual stipulations or transactions related to an alternate debt or equity instrument. Reference Security [Axis] Information related to the reference security when debt or equity conditions are contingent upon contractual stipulations or transactions related to an alternate debt or equity instrument. Reference Security [Domain] Reference Security [Domain]