Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] ESPP Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Employee stock Employee Stock [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Amounts withheld in contributions from employees Share Based Compensation Arrangement by Share Based Payment Award Contribution from Employees Withheld Represents the amount of contributions from employees withheld. Stock-based compensation expense Allocated Share-based Compensation Expense ESPP shares issued (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Weighted average purchase price (in dollars per share) Shares Issued, Price Per Share Commitments and Contingencies Disclosure [Abstract] Rent expenses Operating Leases, Rent Expense, Net Deferred rent Deferred Rent Credit 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 in Second Year Royalty Guarantees, Commitments, Future Minimum Payments Due in Second Year Loss Contingencies [Table] Loss Contingencies [Table] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Pre-1972 Copyright Litigation Pre-1972 Copyright Litigation [Member] Pre-1972 Copyright Litigation [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost of revenue - content acquisition costs Cost of Revenue - Content Acquisition Costs [Member] Cost of Revenue - Content Acquisition Costs [Member] Cost of revenue - content acquisition costs Cost of Sales [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Settlement Litigation Settlement, Amount Litigation settlement, expense Direct Operating Cost, Royalty Expense Expenses Litigation Settlement, Expense Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Ticketfly Ticketfly, Inc. [Member] Ticketfly, Inc. [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Revenue Business Acquisition, Pro Forma Revenue Net loss Business Acquisition, Pro Forma Net Income (Loss) Income Tax Disclosure [Abstract] Reconciliation of the statutory federal rate and the company's effective tax rate Effective Income Tax Rate Reconciliation, Percent [Abstract] U.S. federal taxes at statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent State taxes, net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Permanent differences Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent Foreign rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Federal and state credits, net of reserve Effective Income Tax Rate Reconciliation, Federal and State Credits Net of Reserve The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by federal and state credits net of reserve generated or utilized under enacted tax laws during the period. Impact of acquired DTAs and DTLs Effective Income Tax Rate Reconciliation, Deferred Taxes, Percent Effective Income Tax Rate Reconciliation, Deferred Taxes, Percent Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Change in rate Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Deferred adjustments Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Effective tax rate Effective Income Tax Rate Reconciliation, Percent Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Accumulated Deficit Retained Earnings [Member] Statement Statement [Line Items] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance Stockholders' Equity Attributable to Parent Beginning balance (in shares) Shares, Issued Issuance of common stock upon exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Issuance of common stock upon exercise of stock options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Issuance of common stock related to acquisitions Stock Issued During Period, Value, Acquisitions Issuance of common stock related to acquisitions (in shares) Stock Issued During Period, Shares, Acquisitions Stock-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Vesting of restricted stock units Stock Issued During Period, Value, Restricted Stock Award, Gross Vesting of restricted stock units (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Gross Vesting of market stock units Stock Issued During Period, Value, New Issues Vesting of market stock units (in shares) Stock Issued During Period, Shares, New Issues Share cancellations to satisfy tax withholding on vesting of restricted stock units Adjustments Related to Tax Withholding for Share-based Compensation Share cancellations to satisfy tax withholding on vesting of restricted stock units (in shares) Shares Paid for Tax Withholding for Share Based Compensation Stock issued under employee stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Stock issued under employee stock purchase plan (in shares) Fair value of escrow settlement Adjustments To Additional Paid In Capital, Fair Value of Escrow Settlement Adjustments To Additional Paid In Capital, Fair Value of Escrow Settlement Fair value of escrow settlement (in shares) Adjustments To Additional Paid In Capital, Fair Value of Escrow Settlement, Shares Adjustments To Additional Paid In Capital, Fair Value of Escrow Settlement, Shares Excess tax benefit from stock-based awards Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Equity component of convertible note issuance, net of issuance costs Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt Purchase of capped call Adjustments To Additional Paid In Capital, Derivative Transaction Adjustments To Additional Paid In Capital, Derivative Transaction Components of comprehensive loss: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Net loss Net Income (Loss) Attributable to Parent Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Ending balance Ending balance (in shares) Organization, Consolidation and Presentation of Financial Statements [Abstract] Other long-term assets Other Assets, Noncurrent [Abstract] Ticketing contract advances - long-term Prepaid Contract Expense, Noncurrent Prepaid Contract Expense, Noncurrent Long-term security deposits Security Deposit Other Other Assets, Miscellaneous, Noncurrent Total other long-term assets Other Assets, Noncurrent Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Unrecognized tax benefits, beginning balance Unrecognized Tax Benefits Increases related to tax positions taken during a prior year Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Decreases related to tax positions taken during a prior year Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Increases related to tax positions taken during the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Unrecognized tax benefits, ending balance Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 3 Fair Value, Inputs, Level 3 [Member] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Money market funds Money Market Funds [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair value measured on a recurring basis Fair Value, Measurements, Recurring [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] Fair value Alternative Investments, Fair Value Disclosure Assets measured at fair value Assets, Fair Value Disclosure, Recurring Liabilities measured at fair value Liabilities, Fair Value Disclosure, Recurring Rdio Rdio, Inc. - Technology And Intellectual Property [Member] Rdio, Inc. - Technology And Intellectual Property [Member] Other Series of Individually Immaterial Business Acquisitions [Member] 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] Customer relationships - clients Customer Relationships, Venues And Promoters [Member] Customer Relationships, Venues And Promoters [Member] Developed technology Technology-Based Intangible Assets [Member] Tradename Trade Names [Member] Customer relationships - users Customer Relationships, Users [Member] Customer Relationships, Users [Member] 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] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Estimated fair value Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Estimated useful life in years Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Tangible assets acquired, net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Deferred tax liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent Net assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Goodwill Goodwill Total Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Document Period End Date Document Period End Date Other long-term liabilities Other Liabilities, Noncurrent [Abstract] Long-term deferred rent Deferred Rent Credit, Noncurrent Other Other Sundry Liabilities, Noncurrent Total other long-term liabilities Other Liabilities, Noncurrent Statement of Cash Flows [Abstract] Operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Adjustments to reconcile net loss to net cash provided by (used in) operating activities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Stock-based compensation Share-based Compensation Amortization of premium on investments, net Investment Income, Amortization of Premium Other operating activities Other Operating Activities, Cash Flow Statement Amortization of debt discount Amortization of Debt Issuance Costs and Discounts Excess tax benefit from stock-based awards Excess Tax Benefit from Share-based Compensation, Operating Activities Changes in assets and liabilities Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Prepaid content acquisition costs Increase (Decrease) in Prepaid Royalties Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable, accrued and other current liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Accrued content acquisition costs Increase (Decrease) in Royalties 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 provided by (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 sales of investments Proceeds from Sale of Available-for-sale Securities Payments related to acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Net cash used in 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] Proceeds from issuance of convertible notes Proceeds from Convertible Debt Payments for purchase of capped call Payments for Derivative Instrument, Financing Activities Payment of debt issuance costs Payments of Debt Issuance Costs Borrowings under debt arrangements Proceeds from Issuance of Long-term Debt 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 Excess tax benefit from stock-based awards Excess Tax Benefit from Share-based Compensation, Financing Activities 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 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 Carrying Value 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 income taxes Income Taxes Paid, Net 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 Fair value of shares issued related to the acquisition of a business Other Significant Noncash Transaction, Value of Consideration Given Debt Disclosure [Abstract] 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] 2011 Plan Equity Incentive Plan 2011 [Member] Represents information pertaining to the entity's 2011 Equity Incentive Plan. This plan provides for the issuance of stock options, restricted stock units and other stock-based awards. 2004 Plan Stock Option Plan 2004 [Member] Stock Option Plan 2004 [Member] Stock options 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. Shares of common stock reserved for the issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Shares of common stock previously reserved but unissued (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Annual fixed increase alternative, increase in shares of common stock reserved for issuance (in shares) Share Based Compensation Arrangement by Share Based Payment Award, Additional Shares that May be Authorized Annually Under the fixed increase alternative, represents the potential annual increase in shares of common stock reserved for issuance as share-based compensation. This alternative may be used, provided that, it is the least number of additional shares reserved for issuance under the three alternatives. Annual percentage increase alternative, increase in common stock reserved for issuance as a percentage of common stock outstanding Share Based Compensation Arrangement by Share Based Payment Award, Additional Shares that May be Authorized Annually Percentage Under the automatic percentage increase alternative, represents the potential annual increase in common stock reserved for issuance as share-based compensation, expressed as a percentage of common stock outstanding at the end of the prior fiscal year. This alternative may be used, provided that, it is the least number of additional shares reserved for issuance under the three alternatives. Expiration term (no more than) Share Based Compensation Arrangements by Share Based Payment Award, Options Expiration Term The period of time, from the grant date until the time at which the share-based award expires. Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Percentage of payroll deductions of eligible employees to purchase shares of common stock (up to) Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate Maximum amount of payroll deductions eligible employees can use per calendar year Share Based Compensation Arrangement by Share Based Payment Award Maximum Employee Subscription The maximum amount of annual salary that an employee is permitted to utilize with respect to the plan. Offering period Share-Based Compensation Arrangement By Share-Based Payment Award, Offering Period Represents the offering period for award under the share based compensation. Exercise price as a percentage of the fair market value of the common stock Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent Valuation Technique [Axis] Valuation Technique [Axis] Valuation Technique [Domain] Valuation Technique [Domain] Black-Scholes option 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. Expected life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Risk-free interest rate, minimum (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Risk-free interest rate, maximum (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Expected volatility, minimum (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Expected volatility, maximum (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Expected dividend yield (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] 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] Indefinite-lived intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Patents Patents [Member] Developed technology Developed Technology Rights [Member] Trade names 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 Net Carrying Value Finite-Lived Intangible Assets, Net Total intangible assets, Gross Carrying Amount Intangible Assets, Gross (Excluding Goodwill) Total intangible assets, Accumulated Amortization Total intangible assets, Net Carrying Value Intangible Assets, Net (Excluding Goodwill) Earnings Per Share [Abstract] Common Stock and Net Loss Per Share Earnings Per Share [Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Servers, computers and other related equipment Computer Equipment [Member] Leasehold improvements Leasehold Improvements [Member] Office furniture and equipment Furniture and Fixtures [Member] Construction in progress Construction in Progress [Member] Software developed for internal use Software Development [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property and equipment, net Property, Plant and Equipment, Net [Abstract] Total property and equipment Property, Plant and Equipment, Gross Less accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Total property and equipment, net Property, Plant and Equipment, Net Quoted Prices in Active Markets for Identical Instruments (Level 1) Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Commercial paper Commercial Paper [Member] Corporate debt securities Corporate Debt Securities [Member] U.S. government and government agency debt securities US Government Agencies Debt Securities [Member] Total assets measured at fair value Assets, Fair Value Disclosure Fair Value Fair Value Disclosures [Text Block] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Available-for-sale securities, continuous unrealized loss position, twelve months or less, fair value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Available-for-sale securities, continuous unrealized loss position, twelve months or less, gross unrealized losses Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale securities, continuous unrealized loss position, more than twelve months, fair value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Available-for-sale securities, continuous unrealized loss position, more than twelve months, gross unrealized losses Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-sale securities, continuous unrealized loss position, total, fair value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale securities, continuous unrealized loss position, total, gross unrealized losses Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss 2017 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Aggregate purchase price Business Combination, Consideration Transferred Shares issued in acquisition (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Cash paid Payments to Acquire Businesses, Gross Share price (in dollars per share) Business Acquisition, Share Price Post-combination compensation expense Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized Post-combination compensation expense (in shares) Business Combination, Separately Recognized Transactions, Expenses And Losses Recognized, Shares Business Combination, Separately Recognized Transactions, Expenses And Losses Recognized, Shares Post-combination compensation expense, cash Business Combination, Separately Recognized Transactions, Expenses And Losses Recognized, Payment Business Combination, Separately Recognized Transactions, Expenses And Losses Recognized, Payment Required service period (up to) Business Combination, Separately Recognized Transactions, Expenses And Losses Recognized, Service Period Business Combination, Separately Recognized Transactions, Expenses And Losses Recognized, Service Period Estimated liabilities for indirect taxes and other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other Escrow receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Number of companies integrated Number Of Companies Integrated Number Of Companies Integrated Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Capitalized cost related to internal use software and website development costs Capitalized Computer Software, Net 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] General and administrative General and Administrative Expense [Member] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Accelerated awards in connection with executive severance Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost Statement of Financial Position [Abstract] Assets Assets [Abstract] Current assets Assets, Current [Abstract] Cash and cash equivalents Short-term investments Short-term Investments Accounts receivable, net of allowance of $2,165 at December 31, 2015 and $3,633 at December 31, 2016 Receivables, Net, Current Prepaid content acquisition costs Prepaid Royalties Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Long-term investments Long-term Investments Property and equipment, net Intangible assets, net Other long-term assets Total assets Assets Liabilities 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 Total current liabilities Liabilities, Current Long-term debt, net Long-term Debt Other long-term liabilities Total liabilities Liabilities Stockholders’ equity Stockholders' Equity Attributable to Parent [Abstract] Common stock, $0.0001 par value, 1,000,000,000 shares authorized: 224,970,412 shares issued and outstanding at December 31, 2015 and 235,162,757 at December 31, 2016 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 Total liabilities and stockholders’ equity Liabilities and Equity Quarterly Financial Information Disclosure [Abstract] Schedule of selected quarterly financial data (unaudited) Quarterly Financial Information [Table Text Block] Goodwill Goodwill [Roll Forward] Beginning balance Goodwill resulting from business combination and purchase price adjustments Goodwill, Acquired During Period Ending balance Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Segment Reporting [Abstract] Segment Data and Revenue by Geographic Area Segment Reporting Disclosure [Text Block] Cash paid by Pandora Cash paid by Ticketfly to option holders Business Combination, Consideration Transferred, Cash Paid By Acquiree Business Combination, Consideration Transferred, Cash Paid By Acquiree Common stock (11,193,847 shares at $12.18 per share) issued by Pandora to selling shareholders Business Acquisition, Equity Interest Issued or Issuable, Value Assigned Fair value of stock options and restricted stock units assumed Business Combination, Consideration Transferred, Share-Based Compensation Awards Assumed Business Combination, Consideration Transferred, Share-Based Compensation Awards Assumed Less: purchase price adjustments Business Combination, Consideration Transferred, Working Capital Adjustments Business Combination, Consideration Transferred, Working Capital Adjustments Less: post-combination compensation expense Purchase consideration Unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Service period over which company recognizes stock-based compensation (years) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Weighted-average fair value of stock option granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Total grant date fair value of stock options vested Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Total Grant Date Fair Value Represents the aggregate grant-date fair value of share-based compensation plan awards to be expensed over the requisite period. Aggregate intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Total fair value of options vested Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value Numerator Net Income (Loss) Attributable to Parent [Abstract] Denominator Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted-average common shares outstanding used in computing basic and diluted net loss per share (in shares) Weighted Average Number of Shares Outstanding, Basic and Diluted Net loss per share, basic and diluted (in dollars per share) Earnings Per Share, Basic and Diluted 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] Schedule of accounts receivable, net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of allowance for doubtful accounts Schedule of Credit Losses for Financing Receivables, Current [Table Text Block] Schedule of prepaid and other current assets Schedule of Other Current Assets [Table Text Block] Schedule of other long-term assets Schedule of Other Assets, Noncurrent [Table Text Block] Schedule of property and equipment, net Property, Plant and Equipment [Table Text Block] Schedule of other current liabilities Other Current Liabilities [Table Text Block] Schedule of other long-term liabilities Other Noncurrent Liabilities [Table Text Block] 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] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] United States UNITED STATES International Non-US [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Revenues Revenue, Net Cost of revenues Cost of Revenue Gross profit Gross Profit Operating and other expenses Operating and Other Expenses Operating and Other Expenses Net loss Depreciation and amortization Cost of Services, Depreciation and Amortization Accounts receivable, net Accounts Receivable, Net [Abstract] Accounts receivable Accounts Receivable, Gross, Current Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable Total accounts receivable, net Components of deferred tax assets and liabilities Components of Deferred Tax Assets and Liabilities [Abstract] Deferred tax assets Components of Deferred Tax Assets [Abstract] Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Tax credit carryforwards Deferred Tax Assets, Tax Credit Carryforwards Allowances and other Deferred Tax Assets Allowances and Other Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from allowances and other. Stock options Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Depreciation and amortization Deferred Tax Assets, Property, Plant and Equipment Total deferred tax assets Deferred Tax Assets, Gross Valuation allowance Deferred Tax Assets, Valuation Allowance Total deferred tax assets, net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Deferred tax liabilities Components of Deferred Tax Liabilities [Abstract] Convertible debt Deferred Tax Liabilities, Financing Arrangements Depreciation and amortization Deferred Tax Liabilities, Property, Plant and Equipment Total deferred tax liabilities Deferred Tax Liabilities, Gross Net deferred tax assets (liabilities) Deferred Tax Liabilities, Net Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Jurisdiction Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract] Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Loss before benefit from (provision for) income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Number of owned securities that were in an unrealized loss position Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Unrealized losses deemed to be other-than-temporary Other than Temporary Impairment Losses, Investments, Available-for-sale Securities Proceeds from sale of available-for-sale securities Realized gain (loss) in connecting with sales of available-for-sale securities Available-for-sale Securities, Gross Realized Gain (Loss) Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other current assets Other Current Assets [Member] Receivables for the reimbursement of costs of leasehold improvements in connection with operating leases Leasehold Improvements, Receivable Leasehold Improvements, Receivable Depreciation Depreciation Expected useful lives (years) Property, Plant and Equipment, Useful Life Accumulated amortization Amortization expense Amortization Cost of revenue—Other Cost of revenue—Ticketing service Service And Processing Costs [Member] Service And Processing Costs [Member] Product development Research and Development Expense [Member] Sales and marketing Selling and Marketing Expense [Member] Total stock-based compensation expense Current Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) State and local Current State and Local Tax Expense (Benefit) International Current Foreign Tax Expense (Benefit) Total current income tax expense Current Income Tax Expense (Benefit) Deferred Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State and local Deferred State and Local Income Tax Expense (Benefit) International Deferred Foreign Income Tax Expense (Benefit) Valuation allowance Deferred Income Tax Expense (Benefit) Valuation Allowance Represents the component of income tax expense for the period representing the valuation allowance in the entity's deferred tax assets and liabilities pertaining to continuing operations. Total deferred income tax expense (benefit) Deferred Income Tax Expense (Benefit) Total provision for (benefit from) income taxes Income Tax Expense (Benefit) Summary of the components of the purchase consideration transferred Schedule of Business Acquisitions, by Acquisition [Table Text Block] Summary of the estimated fair values of assets acquired and liabilities assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of unaudited pro forma results Business Acquisition, Pro Forma Information [Table Text Block] Summary of the allocation of estimated fair values of net assets acquired including related estimated useful lives Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [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 that were excluded from the computation of diluted net loss per share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] 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 Deferred revenue related to in-app mobile subscriptions subject to refund rights Deferred Revenue Increase related to in-app subscription revenue Increase (Decrease) in Subscription Revenue Represents the amount of Increase (decrease) related to in-application (in-app) subscription revenue. Concentration Risk [Table] Concentration Risk [Table] Internal use software and website development MSUs Market Stock Units (MSUs) [Member] Market Stock Units (MSUs) [Member] Concentration Risk [Line Items] Concentration Risk [Line Items] Actual credit losses Allowance for Doubtful Accounts Receivable, Write-offs Estimated useful lives of assets (years) Capitalized cost, net of amortization, related to internal use software and website development costs Life of ticketing contract term (years) Ticketing Contract Advances, Contract, Term Ticketing Contract Advances, Contract, Term Amortization expense on ticketing contract advances Amortization Of Ticketing Contract Advances Amortization Of Ticketing Contract Advances Impairment of goodwill Goodwill, Impairment Loss Finite-lived intangible asset, useful life (years) Finite-Lived Intangible Asset, Useful Life Number of performance periods used for measurement 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 Advertising expenses Advertising Expense Current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets Long-term assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets Current liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Long-term liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Schedule of shares available for grant and activity Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] 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 option activity Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of assumptions used for estimating the per-share fair value of stock options Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of activities for RSUs and MSUs Schedule of Share-based Compensation, Restricted Stock Units Award Activity [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] Schedule of Reportable Segments Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Revenue by Geographic Area Revenue from External Customers by Geographic Areas [Table Text Block] Line of Credit Facility [Table] Line of Credit Facility [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] Notes Convertible Senior Notes Due 2020 [Member] Convertible Senior Notes Due 2020 [Member] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Redemption, period 1 Debt Instrument, Redemption, Period One [Member] Redemption, period 2 Debt Instrument, Redemption, Period Two [Member] Redemption, period 3 Debt Instrument, Redemption, Period Three [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Line of credit Line of Credit [Member] Letter of credit Letter of Credit [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Alternate base rate Debt Instrument Variable Rate Base Alternate Base Rate [Member] The alternate base rate used to calculate the variable interest rate of the debt instrument. LIBOR London Interbank Offered Rate (LIBOR) [Member] Debt Instruments Line of Credit Facility [Line Items] Aggregate principal amount Debt Instrument, Face Amount Interest rate (percent) Debt Instrument, Interest Rate, Stated Percentage Net proceeds from sale of debt Proceeds from Debt, Net of Issuance Costs Payments for capped call transactions Debt instrument, conversion ratio Debt Instrument, Convertible, Conversion Ratio Debt instrument, conversion price (in dollars per share) Debt Instrument, Convertible, Conversion Price Debt instrument, threshold percentage of stock price trigger Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Debt instrument, threshold trading days Debt Instrument, Convertible, Threshold Trading Days Debt instrument, threshold consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Debt instrument, threshold notice trading days Debt Instrument, Convertible, Threshold Notice Trading Days Debt Instrument, Convertible, Threshold Notice Trading Days Debt instrument, redemption price, percentage of principal Debt Instrument, Redemption Price, Percentage Debt conversion, maximum number of shares of common stock convertible by notes (shares) Debt Conversion, Converted Instrument, Shares Debt Conversion, Converted Instrument, Shares Debt instrument, threshold note trading days Debt Instrument, Convertible, Threshold Note Trading Days Debt Instrument, Convertible, Threshold Note Trading Days Debt instrument, threshold principle amount of note trigger Debt Instrument, Convertible, Threshold Principle Amount of Note Trigger Debt Instrument, Convertible, Threshold Principle Amount of Note Trigger Debt instrument, threshold consecutive note trading days Debt Instrument, Convertible, Threshold Consecutive Note Trading Days Debt Instrument, Convertible, Threshold Consecutive Note Trading Days Debt instrument, threshold percentage of note price trigger Debt Instrument, Convertible, Threshold Percentage Of Note Price Trigger Debt Instrument, Convertible, Threshold Percentage Of Note Price Trigger Value of debt Debt Instrument, Fair Value Disclosure Carrying amount of equity component reported in additional paid-in-capital Debt Instrument, Convertible, Carrying Amount of Equity Component Debt fees and expenses Debt Instrument, Fee Amount Initial cap price (in dollars per share) Derivative, Cap Price Share price (in dollars per share) Share Price Maximum borrowings available Line of Credit Facility, Maximum Borrowing Capacity Credit facility financial covenant, minimum liquidity Line of Credit Facility Financial Covenant Minimum Liquidity Requirement Represents the minimum amount of liquidity required to be maintained under the credit facility financial covenant. Margin Debt Instrument, Basis Spread on Variable Rate Line of credit facility, unused capacity, commitment fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Borrowings from credit facility Proceeds from Lines of Credit Credit facility Long-term Line of Credit Outstanding amount Letters of Credit Outstanding, Amount Available borrowing capacity Line of Credit Facility, Current Borrowing Capacity Debt issuance cost Debt Issuance Costs, Line of Credit Arrangements, Gross Credit facility term remaining Line of Credit Facility, Remaining Term Line of Credit Facility, Remaining Term Amortization of debt issuance costs Amortization of Debt Issuance Costs Equity Awards Equity Awards [Member] Equity Awards [Member] Restricted stock units Restricted Stock [Member] Performance stock units Performance Shares [Member] Shares Available for Grant Share Based Compensation Arrangement by Share Based Payment Award, Number of Shares Available for Grant [Roll Forward] Represents share-based compensation arrangement by Share-based Payment award, options, number of share available for grant. Beginning balance (in shares) Additional shares authorized (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Units granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period ESPP shares issued (in shares) Options forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Number of Shares Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Vested and exercisable at the end of the period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Share adjustment (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Adjustment Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Adjustment Ending balance (in shares) Future Minimum Lease Payments Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2017 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2018 Operating Leases, Future Minimum Payments, Due in Two Years 2019 Operating Leases, Future Minimum Payments, Due in Three Years 2020 Operating Leases, Future Minimum Payments, Due in Four Years 2021 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total Operating Leases, Future Minimum Payments Due Future Minimum Sublease Income Minimum Lease Payments, Sale Leaseback Transactions, Fiscal Year Maturity [Abstract] 2017 Future Minimum Sublease Rentals, Sale Leaseback Transactions, Next Twelve Months 2018 Future Minimum Sublease Rentals, Sale Leaseback Transactions, within Two Years 2019 Future Minimum Sublease Rentals, Sale Leaseback Transactions, within Three Years 2020 Future Minimum Sublease Rentals, Sale Leaseback Transactions, within Four Years 2021 Future Minimum Sublease Rentals, Sale Leaseback Transactions, within Five Years Thereafter Future Minimum Sublease Rentals, Sale Leaseback Transactions, Thereafter Total Future Minimum Sublease Rentals, Sale Leaseback Transactions Other current liabilities Other Liabilities, Current [Abstract] Ticketing amounts due to clients Due To Vendor, Current Due To Vendor, Current Other Other Sundry Liabilities, Current Total other current liabilities Allowance for Doubtful Accounts Allowance for Doubtful Accounts Receivable [Roll Forward] Balance at Beginning of Period Additions Provision for Doubtful Accounts Write-offs, Net of Recoveries Allowance for Doubtful Accounts Receivable, Period Increase (Decrease) Balance at End of Period Provision for Income Taxes Income Tax Disclosure [Text Block] Schedule of future minimum lease payments under operating leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Number of operating segments Number of Operating Segments Number of reportable segments Number of Reportable Segments Amortization expense of intangible assets Amortization of Intangible Assets RSUs Restricted Stock Units (RSUs) [Member] PSUs Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Unvested at the beginning of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (in shares) Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited (in shares) Unvested at the end of the period (in shares) Expected to vest at end of the period (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Expected To Vest, Outstanding, Number Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Expected To Vest, Outstanding, Number Weighted-Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Unvested at the beginning of the period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Unvested at the end of the period (in dollars per share) Expected to vest at end of the period (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Expected To Vest, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Expected To Vest, Weighted Average Grant Date Fair Value Composition of Certain Financial Statement Captions Additional Financial Information Disclosure [Text Block] Total revenue Cost of revenue Cost of Revenue [Abstract] Cost of revenue—Content acquisition costs Cost of revenue—Other Other Cost of Operating Revenue Cost of revenue—Ticketing service Service And Processing Costs Service And Processing Costs Total cost of revenue 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 Total operating expenses Operating Expenses Loss from operations Operating Income (Loss) Net loss Net loss per share, basic (in dollars per share) Earnings Per Share, Basic Net loss per share, diluted (in dollars per share) Earnings Per Share, Diluted Adjusted Cost Available-for-sale Securities, Amortized Cost Basis Unrealized Gains Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Unrealized Losses Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Fair Value Available-for-sale Securities Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Consolidation Consolidation, Policy [Policy Text Block] Change in Presentation Comparability of Prior Year Financial Data, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Concentration of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Cash, Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Investments Investment, Policy [Policy Text Block] Accounts Receivable and Allowance for Doubtful Accounts Trade and Other Accounts Receivable, Policy [Policy Text Block] Property and Equipment, net Property, Plant and Equipment, Policy [Policy Text Block] Ticketing Contract Advances Revenue Recognition, Services, Licensing Fees [Policy Text Block] Business Combinations Business Combinations Policy [Policy Text Block] Goodwill and Intangible Assets, net Goodwill and Intangible Assets, Policy [Policy Text Block] Stock-Based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Cost of Revenue Cost of Sales, Policy [Policy Text Block] Product Development Research and Development Expense, Policy [Policy Text Block] Sales and Marketing, and General and Administrative Selling, General and Administrative Expenses, Policy [Policy Text Block] Provision for (Benefit from) Income Taxes Income Tax, Policy [Policy Text Block] Net Loss Per Share Earnings Per Share, Policy [Policy Text Block] Recently Issued Accounting Standards and Recently Adopted Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Commitments and Contingencies Commitments and Contingencies, Policy [Policy Text Block] Description of Business and Basis of Presentation Business Description and Basis of Presentation [Text Block] Number of voting rights per share Common Stock, Voting Rights Per Share Represents the description of voting rights of common stock. Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] 1.75% convertible senior notes due 2020 Debt Instrument [Line Items] Debt Instrument [Line Items] Business Combinations Business Combination Disclosure [Text Block] Investment Holdings [Table] Investment Holdings [Table] Cash Cash [Member] Cash, Cash Equivalents and Investments Investment Holdings [Line Items] Total cash and cash equivalents Total short-term investments Total long-term investments Total cash, cash equivalents and investments Cash, Cash Equivalents and Investments. Represents the amount of cash and cash equivalents and investments as of the balance sheet date. Stock-based Compensation Plans and Awards Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Statement of Comprehensive Income [Abstract] 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 losses on marketable securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Other comprehensive income (loss) Total comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Outstanding Stock Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Balance at the beginning of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Exercised (in shares) Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Balance at the end of the period (in shares) Vested and exercisable at the end of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Expected to vest at the end of the period (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Expected To Vest, Outstanding, Number Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Expected To Vest, Outstanding, Number Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Balance at the beginning of the period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Forfeited (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Balance at the end of the period (in dollars per share) Expected to vest at the end of the period (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Expected To Vest, Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Expected To Vest, Weighted Average Exercise Price Weighted-Average Remaining Contractual Term (in years) Share Based Compensation Arrangement by Share Based Payment Award, Options Weighted Average Remaining Contractual Term [Abstract] Outstanding at the beginning of the period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Outstanding at the end of the period Vested and exercisable at the end of the period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Expected to vest at the end of the period Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Expected To Vest, Weighted Average Remaining Contractual Term Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Expected To Vest, Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Share Based Compensation Arrangement by Share Based Payment Award, Options Intrinsic Value [Abstract] Aggregate intrinsic value beginning of the period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Aggregate intrinsic value end of the period Vested and exercisable at the end of the period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Expected to vest at the end of the period Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Expected To Vest, Aggregate Intrinsic Value Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Expected To Vest, Aggregate Intrinsic Value Fair value per share of common stock (in dollars per share) Common Stock Fair Value Per Share Represents the fair value per share of the common stock of the reporting entity. Decrease in income tax provision Increase (Decrease) in Income Tax Expense (Benefit) Represents the increase (decrease) during the period in the sum of current income tax expense or benefit and deferred income tax expense or benefit pertaining to continuing operations. Release of valuation allowance as a result of acquisitions Valuation Allowances and Reserves, Period Increase (Decrease), Acquisitions Valuation Allowances and Reserves, Period Increase (Decrease), Acquisitions Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Federal Domestic Tax Authority [Member] State State and Local Jurisdiction [Member] Foreign Foreign Tax Authority [Member] Acquisitions Acquisitions [Member] Acquisitions [Member] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Net operating loss carryforwards Operating Loss Carryforwards Tax credit carryforwards Tax Credit Carryforward, Amount Net operating loss carryforwards recognized through additional paid in capital, if realized Operating Loss Carryforwards Attributable to Additional Paid in Capital Represents the net operating loss carryforwards if realized, would be recognized as a benefit through additional paid in capital. Tax credit carryforwards that do not expire Tax Credit Carryforward, Amount without Expiration Represents the amount of the tax credit carryforward without expiration, before tax effects, available to reduce future taxable income under the enacted tax laws. Tax credit carryforwards that will expire beginning in 2024 Tax Credit Carryforward, Amount with Expiration Represents the amount of the tax credit carryforward with expiration, before tax effects, available to reduce future taxable income under the enacted tax laws. Increase in valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Unrecognized tax benefits Income tax, penalties and interest expense Income Tax Examination, Penalties and Interest Expense Income Statement [Abstract] Revenue Revenues [Abstract] Advertising Advertising Revenue Subscription and other Subscription and Circulation Revenue Ticketing service Service And Processing Revenue Service And Processing Revenue Total revenue Cost of revenue Cost of revenue—Other Operating expenses Interest expense Interest Expense Other income, net Other Nonoperating Income (Expense) Total other income (expense), net Nonoperating Income (Expense) Benefit from (provision for) income taxes Subsequent Events [Abstract] Subsequent Event Subsequent Events [Text Block] Schedule of fair value of financial assets and liabilities Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] 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) Prepaid and other current assets Prepaid Expense and Other Assets, Current [Abstract] Other current assets Other Assets, Current Prepaid expenses Prepaid Expense, Current Ticketing contract advances - short term, net Prepaid Contract Expense, Current Prepaid Contract Expense, Current Total prepaid and other current assets Schedule of loss before provision for income taxes by jurisdiction Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of provision for income taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of reconciliation of the statutory federal rate and effective tax rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of major components of deferred tax assets and liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of reconciliation of beginning and ending amounts of unrecognized tax benefits Summary of Income Tax Contingencies [Table Text Block] Accounts receivable, allowance Common stock, par value (in dollars per share) 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 Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Employee severance and benefits costs Employee Severance [Member] Subsequent Event Subsequent Event [Line Items] Reduction in force (percent) Restructuring And Related Cost, Expected Number Of Positions Eliminated, Percent Restructuring And Related Cost, Expected Number Of Positions Eliminated, Percent Expected cash expenditures Restructuring and Related Cost, Expected Cost Expected total reduction in force costs Effect on Future Earnings, Amount 1.75% convertible senior notes due 2020 Long-term Debt, Gross Unamortized discount on long-term debt Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Long-term debt, net Risk-free interest rate (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected volatility (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Compensation cost not yet recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options Debt Instruments Debt Disclosure [Text Block] Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] One and Two-Year Performance Period Share-Based Compensation Award, Tranche One and Two [Member] Share-Based Compensation Award, Tranche One and Two [Member] Three-Year Performance Period Share-based Compensation Award, Tranche Three [Member] One-Year Performance Period Share-based Compensation Award, Tranche One [Member] Two-Year Performance Period Share-based Compensation Award, Tranche Two [Member] Requisite service period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Vesting percent Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Total stockholder return, duration period Share-Based Compensation Arrangement By Share-Based Payment Award, Determination Period Share-Based Compensation Arrangement By Share-Based Payment Award, Determination 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 Grants in period (in shares) Decrease in shareholder return (percent) Total Shareholder Return, Percentage Decrease Total Shareholder Return, Percentage Decrease 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 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 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 Entity Voluntary Filers Entity Voluntary Filers Entity Well Known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Public Float Entity Public Float