Income Statement [Abstract] Revenue Revenues [Abstract] Advertising Advertising Revenue Subscription and other Subscription and Circulation Revenue Ticketing service Sales Revenue, Services, Net Total revenue Revenue, Net Cost of revenue Cost of Revenue [Abstract] Cost of revenue—Content acquisition costs Direct Operating Cost, Royalty Expense Cost of revenue—Other Other Cost of Operating Revenue Cost of revenue—Ticketing service Cost of Services Total cost of revenue Cost of Revenue Gross profit Gross Profit Operating expenses Operating Expenses [Abstract] Product development Research and Development Expense (Excluding Acquired in Process Cost) Sales and marketing Selling and Marketing Expense General and administrative General and Administrative Expense Goodwill impairment Goodwill, Impairment Loss Contract termination fees Gain (Loss) on Contract Termination Total operating expenses Operating Expenses Loss from operations Operating Income (Loss) Interest expense Interest Expense Other income, net Other Nonoperating Income Total other expense, net Other Nonoperating Income (Expense) Loss before benefit from (provision for) income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Benefit from (provision for) income taxes Income Tax Expense (Benefit) Net loss Net Income (Loss) Attributable to Parent Net loss available to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Net loss per share, basic and diluted (in dollars per share) Earnings Per Share, Basic and Diluted Weighted-average basic and diluted common shares Weighted Average Number of Shares Outstanding, Basic and Diluted Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Convertible debt Convertible Debt [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 1.75% convertible senior notes due 2020 Convertible Senior Notes Due 2020 [Member] Convertible Senior Notes Due 2020 [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Line of credit Line of Credit [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] 1.75% convertible senior notes due 2020 Long-term Debt, Gross Credit facility Long-term Line of Credit Unamortized discount and deferred issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Long-term debt, net Long-term Debt Interest rate Debt Instrument, Interest Rate, Stated Percentage Earnings Per Share [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 [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Options to purchase common stock Employee And Non Employee Stock Options [Member] An arrangement whereby an employee and non-employee is entitled to receive in the future, subject to vesting and other restrictions, a number of shares in the entity at a specified price, as defined in the agreement. Restricted stock units Restricted Stock Units (RSUs) [Member] Performance awards Performance Shares [Member] Employee stock Employee Stock [Member] Anti-dilutive securities Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Total common stock equivalents (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Segment Reporting [Abstract] Schedule of Reportable Segments Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Revenue by Geographic Area Revenue from External Customers by Geographic Areas [Table Text Block] Net Loss Per Common Share Earnings Per Share [Text Block] Cash and Cash Equivalents [Abstract] Adjusted Cost Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] Due in one year or less Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Due after one year through three years Available For Sale Securities, Debt Maturities after One through Three Years, Amortized Cost Represents the amount of available-for-sale debt securities at cost, net of adjustments, maturing in the second fiscal year through the three fiscal years following the latest fiscal year. Total Available-for-sale Debt Securities, Amortized Cost Basis Fair Value Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] Due in one year or less Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Due after one year through three years Available For Sale Securities, Debt Maturities after One through Three Years, Fair Value Represents the amount of available-for-sale debt securities at fair value maturing in the second fiscal year through the three fiscal years following the latest fiscal year. Total Available-for-sale Securities, Debt Securities Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Pandora Pandora [Member] Pandora [Member] Ticketfly Ticketfly, Inc. [Member] Ticketfly, Inc. [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Balance as of December 31, 2016 Goodwill Goodwill impairment Goodwill classified as held for sale Disposal Group, Including Discontinued Operation, Goodwill Effect of currency translation adjustment Goodwill, Translation and Purchase Accounting Adjustments Balance as of June 30, 2017 Schedule of long-term debt Schedule of Long-term Debt Instruments [Table Text Block] Summary of the effective interest rate, contractually stated interest expense and costs related to amortization of discount for the Notes Convertible Debt [Table Text Block] Line of Credit Facility [Table] Line of Credit Facility [Table] Letter of credit Letter of Credit [Member] Debt Instruments Line of Credit Facility [Line Items] Maximum borrowings available Line of Credit Facility, Maximum Borrowing Capacity Credit facility Proceeds from Lines of Credit Outstanding amount Letters of Credit Outstanding, Amount Available borrowing capacity Line of Credit Facility, Current Borrowing Capacity Schedule of cash, cash equivalents and investments Cash, Cash Equivalents and Investments [Table Text Block] Summary of available-for-sale securities' adjusted cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Schedule of available-for-sale investments by contractual maturity date Investments Classified by Contractual Maturity Date [Table Text Block] Summary of available-for-sale securities' fair value and gross unrealized losses Available-for-sale Securities [Table Text Block] Restructuring and Related Activities [Abstract] Restructuring Charges Restructuring and Related Activities Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Hierarchy [Axis] 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Identical Instruments (Level 1) Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Corporate debt securities Corporate Debt Securities [Member] Assets: Assets, Fair Value Disclosure [Abstract] Total assets measured at fair value Assets, Fair Value Disclosure Fair Value Fair Value Disclosures [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 [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] RSUs Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Stock-based compensation expense Percentage of eligible compensation to purchase common stock through payroll deductions (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate Offering period Share-Based Compensation Arrangement By Share-Based Payment Award, Offering Period Represents the offering period for award under the share based compensation. Contributions from employees withheld Share Based Compensation Arrangement by Share Based Payment Award Contribution from Employees Withheld Represents the amount of contributions from employees withheld. 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Represents the amount of cash and cash equivalents and investments as of the balance sheet date. Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] United States UNITED STATES International Non-US [Member] Revenues Cost of revenues Operating and other expenses Operating and Other Expenses Operating and Other Expenses Depreciation and amortization Cost of Services, Depreciation and Amortization Valuation Technique [Axis] Valuation Technique [Axis] Valuation Technique [Domain] Valuation Technique [Domain] Black Scholes Options Pricing Model Black Scholes Options Pricing Model [Member] Represents information pertaining to the Black-Scholes options pricing model, a valuation method used in the computation of fair value of stock options. Stock options Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Expected life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk-free interest rate, minimum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Risk-free interest rate, maximum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected volatility, minimum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Expected volatility, maximum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Notes Aggregate principal amount Debt Instrument, Face Amount Net proceeds from sale of debt Proceeds from Debt, Net of Issuance Costs Payments for capped call transactions Payments for Derivative Instrument, Financing Activities Debt instrument, conversion price (in dollars per share) Debt Instrument, Convertible, Conversion Price Value of debt Debt Instrument, Fair Value Disclosure Closing price of common stock (in dollars per share) Share Price Discontinued Operations and Disposal Groups [Abstract] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] Ticketfly and KXMZ Ticketfly, Inc. and KXMZ [Member] Ticketfly, Inc. and KXMZ [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Held for sale Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Loss before benefit from (provision for) income taxes Assets held for sale Disposal Group, Including Discontinued Operation, Assets [Abstract] Cash and cash equivalents Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents Accounts receivable, net Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net Prepaid expenses and other current assets Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current Property and equipment, net Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent Goodwill Intangible assets, net Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent Other long-term assets Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent Total assets held for sale Disposal Group, Including Discontinued Operation, Assets Liabilities held for sale Disposal Group, Including Discontinued Operation, Liabilities [Abstract] Accounts payable, accrued liabilities and accrued compensation Disposal Group, Including Discontinued Operation, Accounts Payable, Current Other current liabilities Disposal Group, Including Discontinued Operation, Other Liabilities, Current Other long-term liabilities Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent Total liabilities held for sale Disposal Group, Including Discontinued Operation, Liabilities Statement of Comprehensive Income [Abstract] Net loss Change in foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Change in net unrealized loss on marketable securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Statement of Financial Position [Abstract] Accounts receivable, allowance Allowance for Doubtful Accounts Receivable Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Number of owned securities that were in an unrealized loss position Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Other-than-temporary investment losses Other than Temporary Impairment Losses, Investments Unrealized losses deemed to be other-than-temporary, recognized Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities Reduction in force Restructuring and Related Cost, Number of Positions Eliminated, Period Percent Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Employee severance and benefits costs Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Expected cash expenditures Restructuring and Related Cost, Incurred Cost Total reduction in force expenses Restructuring and Related Cost, Cost Incurred to Date Reduction of headcount, employees Restructuring and Related Cost, Number of Positions Eliminated Schedule of assumptions used for determining the per-share fair value of shares granted under the ESPP Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] Schedule of stock-based compensation expenses related to all employee and non-employee stock-based awards Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Cash, Cash Equivalents and Investments Cash, Cash Equivalents, and Marketable Securities [Text Block] Numerator Net Income (Loss) Attributable to Parent [Abstract] Less: Stock dividend payable to preferred stockholders Redeemable Preferred Stock Dividends Net loss available to common stockholders Denominator Weighted Average Number of Shares Outstanding, Diluted [Abstract] Net loss per common share, basic and diluted (in dollars per share) Schedule of Redeemable Convertible Preferred Stock Schedule of Stock by Class [Table Text Block] Temporary Equity, by Class of Stock [Table] Temporary Equity, by Class of Stock [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series A convertible preferred stock Series A Preferred Stock [Member] Sale of Stock [Axis] Sale of Stock [Axis] Sale of Stock [Domain] Sale of Stock [Domain] Initial closing Initial Closing [Member] Initial Closing [Member] Closing upon certain regulatory approvals Closing Upon Certain Regulatory Approvals [Member] Closing Upon Certain Regulatory Approvals [Member] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Forecast Scenario, Forecast [Member] Temporary Equity [Line Items] Temporary Equity [Line Items] Agreement to sell shares (in shares) Temporary Equity, Share Subscriptions Share price (in dollars per share) Shares Issued, Price Per Share Agreement to sell shares Temporary Equity, Shares Subscribed but Unissued, Subscriptions Receivable Preferred stock issuance costs Payments of Stock Issuance Costs Proceeds from issuance of redeemable convertible preferred stock Proceeds from Issuance of Convertible Preferred Stock Contract termination fee Shares conversion per share Convertible Preferred Stock, Shares Issued upon Conversion Conversion price (usd per share) Quarterly dividend rate, percentage Preferred Stock, Dividend Rate, Percentage Right to redeem, period Convertible Preferred Stock, Conversion Redemption Right, Period Convertible Preferred Stock, Conversion Redemption Right, Period Holder right to redeem, period Convertible Preferred Stock, Conversion Redemption Holder Right, Period Convertible Preferred Stock, Conversion Redemption Holder Right, Period Redemption percentage Convertible Preferred Stock, Conversion Redemption, Holder Right, Percent Convertible Preferred Stock, Conversion Redemption, Holder Right, Percent Schedule of changes in the carrying amount of goodwill Schedule of Goodwill [Table Text Block] Summary of gross carrying amounts and accumulated amortization of intangible assets - finite lived Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Summary of gross carrying amounts of intangible assets - indefinite lived Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table Text Block] Schedule of future amortization expense related to finite-lived intangible assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Content acquisition costs Payments for Royalties Amortization of prepaid content acquisition costs Amortization of Advance Royalty Total future minimum guarantee payments Royalty Guarantees, Commitments, Amount Future minimum guarantee commitments to be paid this year Royalty Guarantees, Commitments, Future Minimum Payments Due, Remainder of Fiscal Year Royalty Guarantees, Commitments, Future Minimum Payments Due, Remainder of Fiscal Year Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Initial closing of redeemable convertible preferred stock Temporary Equity, Stock Issued During Period, Value, New Issues Series A redeemable convertible preferred stock Issuance costs Accretion of issuance costs Accretion Expense Stock dividend payable to 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Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract] Twelve Months or Less Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss More than Twelve Months Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Total Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Contractually stated interest expense Interest Expense, Debt, Excluding Amortization Amortization of discount Amortization of Debt Discount (Premium) Assets held for sale Liabilities held for sale Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] ASU 2016-09 Accounting Standards Update 2016-09 [Member] Pro Forma Pro Forma [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Additional Paid-in Capital Additional Paid-in Capital [Member] Requisite service period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Deferred tax asset Deferred Tax Assets, Net of Valuation Allowance Cumulative effect Cumulative Effect of New Accounting Principle in Period of Adoption PSUs Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] One-Year Performance Period Share-based Compensation Award, Tranche One [Member] Vesting percent Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 90 Day trailing stock price to vest (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Performance Shares, 90 Day Trailing Stock Price to Vest Share-based Compensation Arrangement by Share-based Payment Award, Performance Shares, 90 Day Trailing Stock Price to Vest Trailing average stock price period Share-Based Compensation Arrangement By Share-Based Payment Award, Determination Period At End Of Performance Period Share-Based Compensation Arrangement By Share-Based Payment Award, Determination Period At End Of Performance Period Grants in period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Grant date fair value Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Total Grant Date Fair Value Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Total Grant Date Fair Value Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] FCC license - Broadcast Radio Licensing Agreements [Member] Acquired Indefinite-lived Intangible Assets [Line Items] Acquired Indefinite-lived Intangible Assets [Line Items] Indefinite-lived intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract] Net Carrying Value Indefinite-Lived Intangible Assets (Excluding Goodwill) Intangible Assets Held for Sale, Indefinite-lived Disposal Group, Including Discontinued Operation, Indefinite-Lived Intangible Assets Disposal Group, Including Discontinued Operation, Indefinite-Lived Intangible Assets Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Patents Patents [Member] Developed technology Developed Technology Rights [Member] Customer relationships—clients Customer Relationships, Venues And Promoters [Member] Customer Relationships, Venues And Promoters [Member] Customer relationships—users Customer Relationships, Users [Member] Customer Relationships, Users [Member] Trade names Trade Names [Member] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Finite-lived intangible assets Finite-Lived Intangible Assets, Net [Abstract] Gross Carrying Amount Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible Assets Held for Sale, Finite lived Disposal Group, Including Discontinued Operation, Finite-Lived Intangible Assets Disposal Group, Including Discontinued Operation, Finite-Lived Intangible Assets Net Carrying Value Finite-Lived Intangible Assets, Net Total intangible assets, Gross Carrying Amount Intangible Assets, Gross (Excluding Goodwill) Total intangible assets, Accumulated Amortization Intangible Assets Held for Sale Disposal Group, Including Discontinued Operation, Intangible Assets Total intangible assets Intangible Assets, Net (Excluding Goodwill) Schedule of Goodwill [Table] Schedule of Goodwill [Table] KXMZ KXMZ [Member] KXMZ [Member] Goodwill [Line Items] Goodwill [Line Items] Fair value of net assets Disposal Group, Including Discontinued Operation, Fair Value Of Net Assets Disposal Group, Including Discontinued Operation, Fair Value Of Net Assets Aggregate purchase price Business Combination, Consideration Transferred Estimated purchase price adjustments Business Combination, Contingent Consideration, Liability Costs to sell Business Acquisition, Transaction Costs Amortization expense of intangible assets Amortization of Intangible Assets Adjusted Cost Available-for-sale Securities, Amortized Cost Basis Unrealized 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Payable Accrued compensation Increase (Decrease) in Employee Related Liabilities Other long-term liabilities Increase (Decrease) in Other Noncurrent Liabilities Deferred revenue Increase (Decrease) in Deferred Revenue Reimbursement of cost of leasehold improvements Payments for (Proceeds from) Tenant Allowance Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Internal-use software costs Payments to Develop Software Changes in restricted cash Increase (Decrease) in Restricted Cash Purchases of investments Payments to Acquire Investments Proceeds from maturities of investments Proceeds from Sale, Maturity and Collection of Investments Proceeds from sale of investments Proceeds from Sale of Available-for-sale Securities Payments related to acquisitions, net of cash acquired Payments to Acquire Businesses, Gross Net cash (used in) provided by investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Payments of issuance costs Payments of Debt Issuance Costs Proceeds from employee stock purchase plan Proceeds from Stock Plans Proceeds from exercise of stock options Proceeds from Issuance of Common Stock Tax payments from net share settlements of restricted stock units Payments Related to Tax Withholding for Share-based Compensation Net cash provided by 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 (decrease) increase in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Less: Cash held for sale Cash and cash equivalents at end of period Supplemental disclosures of cash flow information Supplemental Cash Flow Information [Abstract] Cash paid during the period for interest Interest Paid Purchases of property and equipment recorded in accounts payable and accrued liabilities Capital Expenditures Incurred but Not yet Paid Accretion of preferred stock issuance costs Stock dividend payable to preferred stockholders Dividends, Preferred Stock Stock-based Compensation Plans and Awards Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Schedule of information on assets held for sale Disposal Groups, Including Discontinued Operations [Table Text Block] Schedule of the computation of historical basic and diluted net loss per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of potential common shares outstanding excluded from the computation of diluted net loss per share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Assets and Liabilities Held for Sale Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Assets Assets [Abstract] Current assets Assets, Current [Abstract] Cash and cash equivalents Short-term investments Accounts receivable, net of allowance of $3,633 at December 31, 2016 and $5,708 at June 30, 2017 Receivables, Net, Current Prepaid content acquisition costs Prepaid Royalties Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Assets held for sale Total current assets Assets, Current Long-term investments Property and equipment, net Property, Plant and Equipment, Net Goodwill Intangible assets, net Other long-term assets Other Assets, Noncurrent Total assets Assets Liabilities, redeemable convertible preferred stock and stockholders’ equity Liabilities and Equity [Abstract] Current liabilities Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued liabilities Accrued Liabilities, Current Accrued content acquisition costs Accrued Royalties, Current Accrued compensation Employee-related Liabilities, Current Deferred revenue Deferred Revenue, Current Other current liabilities Other Liabilities, Current Liabilities held for sale Total current liabilities Liabilities, Current Long-term debt, net Other long-term liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Redeemable convertible preferred stock: 172,500 shares issued and outstanding at June 30, 2017 Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests Stockholders’ equity Stockholders' Equity Attributable to Parent [Abstract] Common stock: 235,162,757 shares issued and outstanding at December 31, 2016 and 242,412,275 at June 30, 2017 Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders’ equity Stockholders' Equity Attributable to Parent Total liabilities, redeemable convertible preferred stock and stockholders’ equity Liabilities and Equity Market Stock Units (MSUs) Market Stock Units (MSUs) [Member] Market Stock Units (MSUs) [Member] Two-Year Performance Period Share-based Compensation Award, Tranche Two [Member] Three-Year Performance Period Share-based Compensation Award, Tranche Three [Member] Number of performance periods Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Performance Periods Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Performance Periods TSR prior to beginning of performance period Share-Based Compensation Arrangement By Share-Based Payment Award, Determination Period Before Beginning Of Performance Period Share-Based Compensation Arrangement By Share-Based Payment Award, Determination Period Before Beginning Of Performance Period TSR at end of performance period Performance multiplier, percentage point decrease Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Multiplier, Percentage Decrease Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Multiplier, Percentage Decrease Performance multiplier Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Multiplier Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Multiplier Performance multiplier, percentage point increase Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Multiplier, Percentage Increase Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Multiplier, Percentage Increase TSR decline (percent) Total Shareholder Return, Percentage Decrease Total Shareholder Return, Percentage Decrease Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Convertible subordinated promissory note Convertible Subordinated Debt [Member] Cash portion of purchase price Convertible note receivable Business Combination, Consideration Transferred, Liabilities Incurred Maturity Date Debt Instrument, Term Number of operating segments Number of Operating Segments Number of reportable segments Number of Reportable Segments