Stockholders' Equity Note [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] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Employee Stock Option Share-based Payment Arrangement, Option [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [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] Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 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 Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Organization, Consolidation and Presentation of Financial Statements [Abstract] Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Trade and Other Receivables Accounts Receivable And Other Receivable [Member] Accounts Receivable And Other Receivable [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Customer A Customer A [Member] Customer A [Member] Customer B Customer B [Member] Customer B [Member] Concentration Risk [Line Items] Concentration Risk [Line Items] Concentration risk, percentage Concentration Risk, Percentage Stockholders' Equity Shareholders' Equity and Share-based Payments [Text Block] Business Combinations [Abstract] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] HelloSign Inc. HelloSign Inc. [Member] HelloSign Inc. [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 Customer Relationships [Member] Developed technology Developed Technology Rights [Member] Trade name Trade Names [Member] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Estimated fair values Finite-lived Intangible Assets Acquired Estimated weighted average useful lives (In years) Acquired Finite-lived Intangible Assets, Weighted Average Useful Life 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] Restricted stock units Restricted Stock Units (RSUs) [Member] Options to purchase shares of common stock Co-Founder Grants Co-Founder Grants [Member] Co-Founder Grants [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive securities excluded from computation of earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Restricted Stock Restricted Stock [Member] Number of shares available for issuance under the Plans Share-based Compensation Arrangement By Share-based Payment Award, Shares Available For Issuance [Roll Forward] Share-based Compensation Arrangement By Share-based Payment Award, Shares Available For Issuance [Roll Forward] Beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Additional shares authorized (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Options and RSUs canceled (in shares) Share-based Compensation Arrangement By Share-based Payment Award, Shares Canceled Share-based Compensation Arrangement By Share-based Payment Award, Shares Canceled Shares repurchased for tax withholdings on release of restricted stock (unaudited) (in shares) Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Restricted stock granted (in shares) Share-Based Compensation Arrangement By Share-based Payment Award, Decrease In Number of Shares Authorized From Stock Granted Share-Based Compensation Arrangement By Share-based Payment Award, Decrease In Number of Shares Authorized From Stock Granted Ending balance (in shares) Options Outstanding, Number of shares outstanding under the Plans Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Options exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Options canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Number of Shares Options granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Ending balance (in shares) Vested during period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares Unvested at end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares Options Outstanding, Weighted- average exercise price per share Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Beginning balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Options exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Options canceled (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Options granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Ending balance (in dollars per share) Vested during period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value Unvested at end of period (in dollars per shares) Share-based Compensation Arrangement by Share-based Payment Award, Option, Nonvested, Weighted Average Exercise Price Options Outstanding, Weighted- average remaining contractual term (In years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Weighted-average contractual term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Vested during period Share-based Compensation Arrangement By Share-based Payment Award, Options, Vested, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement By Share-based Payment Award, Options, Vested, Weighted Average Remaining Contractual Term Options outstanding, aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Vested during period, aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Unvested during period, aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Aggregate Intrinsic Value Restricted Stock Outstanding, Number of Plan shares outstanding Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number RSUs released (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Released in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Released in Period RSUs canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Restricted stock granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Ending balance (in shares) Vested during period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Unvested at end of period (in shares) Restricted Stock Outstanding, Weighted- average grant date fair value per share Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Beginning balance (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 RSUs released (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Released in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Released in Period, Weighted Average Grant Date Fair Value RSUs canceled (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 Shares repurchased for tax withholdings on release of restricted stock (in dollars per share) Shares Paid For Tax Withholding For Share Based Compensation, Weighted Average Grant Date Fair Value Shares Paid For Tax Withholding For Share Based Compensation, Weighted Average Grant Date Fair Value Restricted stock 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 Ending balance (in dollars per share) Vested during period (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 Unvested at end of period (in dollars per share) Schedule of Purchase Consideration Transferred Schedule of Business Acquisitions, by Acquisition [Table Text Block] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of Finite-Lived Intangible Assets Acquired and Estimated Useful Lives Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Cover [Abstract] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Class A common stock Common Class A [Member] Class B common stock Common Class B [Member] Class C common stock Common Class C [Member] Class of Stock [Line Items] Class of Stock [Line Items] Document Type Document Type Document Quarterly Report Document Quarterly Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Goodwill and Intangible Assets Disclosure [Abstract] Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract] Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract] Remaining six months of Fiscal 2020 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year 2021 Finite-Lived Intangible Asset, Expected Amortization, Year One 2022 Finite-Lived Intangible Asset, Expected Amortization, Year Two 2023 Finite-Lived Intangible Asset, Expected Amortization, Year Three 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Four Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Four Finite-Lived Intangible Asset, Expected Amortization, after Year Four Total Finite-Lived Intangible Assets, Net Stock repurchase program, authorized amount Stock Repurchase Program, Authorized Amount Stock repurchased and retired during period (in shares) Stock Repurchased and Retired During Period, Shares Stock repurchased and retired during period, aggregate purchase price Stock Repurchased and Retired During Period, Value Schedule of Goodwill Schedule of Goodwill [Table Text Block] Goodwill Goodwill Disclosure [Text Block] Schedule of Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of Future Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Income Tax Disclosure [Abstract] Income tax expense (benefit) Income Tax Expense (Benefit) Increase in unrecognized tax benefits Unrecognized Tax Benefits, Period Increase (Decrease) Unrecognized tax benefits that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate During The Period Unrecognized Tax Benefits that Would Impact Effective Tax Rate During The Period Decrease in unrecognized tax benefits for expiration of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Payables and Accruals [Abstract] Accrued and Other Current Liabilities Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Schedule Of Accrued And Other Current Liabilities Schedule of Accrued Liabilities [Table Text Block] Capitalized Contract Cost [Table] Capitalized Contract Cost [Table] Capitalized Contract Cost [Axis] Capitalized Contract Cost [Axis] Capitalized Contract Cost [Domain] Capitalized Contract Cost [Domain] Deferred Commissions Deferred Commissions [Member] Deferred Commissions [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Prepaid Expenses and Other Current Assets Prepaid Expenses and Other Current Assets [Member] Other Assets Other Noncurrent Assets [Member] Capitalized Contract Cost [Line Items] Capitalized Contract Cost [Line Items] Additional contract costs deferred Capitalized Contract Costs, Additions Capitalized Contract Costs, Additions Deferred contract costs Capitalized Contract Cost, Net Deferred contract costs, amortization period Capitalized Contract Cost, Amortization Period Amortization of deferred commissions Capitalized Contract Cost, Amortization Impairment loss related to deferred costs Capitalized Contract Cost, Impairment Loss Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Datacenter and other computer equipment Computer Equipment [Member] Furniture and fixtures Furniture and Fixtures [Member] Leasehold improvements Leasehold Improvements [Member] Construction in process Construction in Progress [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property and equipment, gross Property, Plant and Equipment, Gross Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property and equipment, net Property, Plant and Equipment, Net Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Line Items] Business Acquisition [Line Items] Purchase consideration, agreements with key personnel Business Combination, Separately Recognized Transactions, Preexisting Relationship, Personnel Agreement Business Combination, Separately Recognized Transactions, Preexisting Relationship, Personnel Agreement Required service period Business Combination, Required Service Period Business Combination, Required Service Period Personnel agreement, expense recognized Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized Acquired finite-lived intangible assets weighted average amortization period Transaction costs Business Combination, Acquisition Related Costs Statement of Comprehensive Income [Abstract] Net income (loss) Net Income (Loss) Attributable to Parent Other comprehensive income, net of tax: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Change in foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Change in net unrealized gains on short-term investments Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Total other comprehensive income, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Potentially Dilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Description of the Business and Summary of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Cash and Cash Equivalents [Abstract] Investment Holdings [Table] Investment Holdings [Table] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Corporate notes and obligations Corporate Debt Securities [Member] Asset-backed securities Asset-backed Securities [Member] Investment Holdings [Line Items] Investment Holdings [Line Items] Cash in transit for credit and debit card transactions Credit and Debit Card Receivables, at Carrying Value Short-term investments, estimated fair value Debt Securities, Available-for-sale Number of investments in unrealized loss positions Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions Number of security types Short-Term Investments, Number of Security Types Short-Term Investments, Number of Security Types Number of security types in loss position Short-Term Investments, Number of Security Types In Loss Position Short-Term Investments, Number of Security Types In Loss Position Unrealized losses, short term investments Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Investment income Investment Income, Net Fair Value Disclosures [Abstract] Schedule of Fair Value Assets Measured On Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Amortized cost Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract] Due within one year Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Due between one to three years Debt Securities, Available For Sale Securities, Maturity, Allocated And Single Maturity Date, After One Through Three Years, Amortized Cost Available For Sale Securities, Debt Maturities After One Through Three Years, Amortized Cost Due after three years Available For Sale Securities, Debt Maturities After Three Years, Amortized Cost Available For Sale Securities, Debt Maturities After Three Years, Amortized Cost Total Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost Estimated fair value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Due within one year Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Due between one to three years Debt Securities, Available For Sale Securities, Maturity, Allocated And Single Maturity Date, After One Through Three Years, Fair Value Available For Sale Securities, Debt Maturities After One Through Three Years, Fair Value Due after three years Available For Sale Securities, Debt Maturities After Three Years, Fair Value Available For Sale Securities, Debt Maturities After Three Years, Fair Value Total Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value Assets under equipment finance lease, gross Finance Lease, Right-of-Use Asset, before Accumulated Amortization Assets under equipment finance lease, accumulated depreciation Finance Lease, Right-of-Use Asset, Accumulated Amortization Depreciation Depreciation Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Amortization expense Amortization of Intangible Assets Segment Reporting [Abstract] Geographic Areas Segment Reporting Disclosure [Text Block] Fair Value Measurements Fair Value Disclosures [Text Block] Schedule of Stock Option and Restricted Stock Activity Share-based Payment Arrangement, Activity [Table Text Block] Schedule of Pre-Tax Intrinsic Value Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Fair Value of Stock Options Assumptions Used Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Leases [Abstract] Leases Lessee, Operating Leases [Text Block] Leases Lessee, Finance Leases [Text Block] Income Taxes Income Tax Disclosure [Text Block] Statement of Financial Position [Abstract] Assets Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Short-term investments Debt Securities, Available-for-sale, Current Trade and other receivables, net Accounts Receivable, after Allowance for Credit Loss, Current Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property and equipment, net Operating lease right-of-use asset Operating Lease, Right-of-Use Asset Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Goodwill Goodwill Other assets Other Assets, Noncurrent Total assets Assets Liabilities and stockholders’ equity Liabilities and Equity [Abstract] Liabilities Liabilities [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued and other current liabilities Accrued Liabilities and Other Liabilities, Current Accrued Liabilities and Other Liabilities, Current Accrued compensation and benefits Employee-related Liabilities, Current Operating lease liability Operating Lease, Liability, Current Finance lease obligation Finance Lease, Liability, Current Deferred revenue Contract with Customer, Liability, Current Total current liabilities Liabilities, Current Operating lease liability, non-current Operating Lease, Liability, Noncurrent Finance lease obligation, non-current Finance Lease, Liability, Noncurrent Other non-current liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingencies (Note 10) Commitments and Contingencies Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Additional paid-in capital Additional Paid in Capital Accumulated deficit Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders’ equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders’ equity Liabilities and Equity Schedule of Cash, Cash Equivalents and Short-Term Investments Cash, Cash Equivalents and Investments [Table Text Block] Contractual Maturities of Short Term Investments Investments Classified by Contractual Maturity Date [Table Text Block] Cash, Cash Equivalents and Short-Term Investments Cash, Cash Equivalents, and Short-term Investments [Text Block] Intangible Assets Intangible Assets Disclosure [Text Block] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Votes per share Common Stock, Vote Equivalent Common Stock, Vote Equivalent Shares converted in conversion (in shares) Conversion of Stock, Shares Converted Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Shares granted (in shares) Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Buildings Building [Member] Datacenter and other computer equipment Office equipment and other Office Equipment [Member] Property and equipment, useful life Property, Plant and Equipment, Useful Life Foreign currency transaction losses Foreign Currency Transaction Gain (Loss), before Tax Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Operating leases Lessee, Operating Lease, Liability, Payment, Due [Abstract] 2020 (excluding the six months ended June 30, 2020) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year 2021 Lessee, Operating Lease, Liability, to be Paid, Year One 2022 Lessee, Operating Lease, Liability, to be Paid, Year Two 2023 Lessee, Operating Lease, Liability, to be Paid, Year Three 2024 Lessee, Operating Lease, Liability, to be Paid, Year Four Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Four Lessee, Operating Lease, Liability, to be Paid, after Year Four Total future minimum lease payments Lessee, Operating Lease, Liability, to be Paid Less imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Less tenant improvement receivables Lessee, Operating Lease, Tenant Improvement Allowance Receivable Lessee, Operating Lease, Tenant Improvement Allowance Receivable Operating lease, liability Operating Lease, Liability Finance Lease, Liability, Payment, Due [Abstract] Finance Lease, Liability, Payment, Due [Abstract] 2020 (excluding the six months ended June 30, 2020) Finance Lease, Liability, to be Paid, Remainder of Fiscal Year 2021 Finance Lease, Liability, to be Paid, Year One 2022 Finance Lease, Liability, to be Paid, Year Two 2023 Finance Lease, Liability, to be Paid, Year Three 2024 Finance Lease, Liability, to be Paid, Year Four Thereafter Finance Lease, Liability, to be Paid, after Year Four Finance Lease, Liability, to be Paid, after Year Four Total future minimum lease payments Finance Lease, Liability, Payment, Due Less imputed interest Finance Lease, Liability, Undiscounted Excess Amount Less tenant improvement receivables Finance Lease, Tenant Improvement Allowance Receivable Finance Lease, Tenant Improvement Allowance Receivable Finance lease, liability Finance Lease, Liability Rent payments from sub-tenants Operating Lease, Lease Income, Lease Payments Rent payments from sub-tenants, term Lease, Remaining Lease Term Lease, Remaining Lease Term Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Debt Disclosure [Abstract] Revolving Credit Facility Debt Disclosure [Text Block] Title of Individual [Axis] Title of Individual [Axis] Title of Individual [Domain] Title of Individual [Domain] Chief Executive Officer Chief Executive Officer [Member] Director Director [Member] Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Tranche One Share-based Payment Arrangement, Tranche One [Member] One-Tier RSU One-Tier Restricted Stock Units (RSUs) [Member] One-Tier Restricted Stock Units (RSUs) [Member] Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Shares forfeited (in shares) Revenue, performance obligation, description of timing Revenue, Performance Obligation, Description of Timing Revenue recognized Contract with Customer, Liability, Revenue Recognized Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Performance obligation satisfaction period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Line of Credit Line of Credit [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Letter of Credit Letter of Credit [Member] Lease Arrangements [Axis] Lease Arrangements [Axis] Lease Arrangements [Axis] Lease Arrangements [Domain] Lease Arrangements [Domain] [Domain] for Lease Arrangements [Axis] Corporate Headquarters Lease Corporate Headquarters Lease [Member] Corporate Headquarters Lease [Member] Lease, remaining lease term Lease, renewal term Lessee, Lease, Renewal Term Lessee, Lease, Renewal Term Operating sublease, term Lessee, Operating Sublease, Remaining Lease Term Lessee, Operating Sublease, Remaining Lease Term Sublease income Sublease Income Minimum obligations Operating Lease, Minimum Obligations Operating Lease, Minimum Obligations Tenant improvements Lessee, Operating Lease, Tenant Improvement Reimbursement Lessee, Operating Lease, Tenant Improvement Reimbursement Letter of credit Line of Credit Facility, Maximum Borrowing Capacity Tenant improvement allowance reimbursement Increase (Decrease) Tenant Improvement Allowance Reimbursement Increase (Decrease) Tenant Improvement Allowance Reimbursement Operating leases, not yet commenced, value Lessee, Operating Lease, Lease Not Yet Commenced, Amount Lessee, Operating Lease, Lease Not yet Commenced, Amount Operating leases, not yet commenced, term of contract Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract Non-income taxes payable Accrual for Taxes Other than Income Taxes, Current Accrued legal and other external fees Accrued Professional Fees, Current Other accrued and current liabilities Other Accrued Liabilities And Other Liabilities, Current Other Accrued Liabilities and Other Liabilities, Current Total accrued and other current liabilities Intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Schedule of Cash and Cash Equivalents [Table] Schedule of Cash and Cash Equivalents [Table] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Cash Cash [Member] Money market funds Money Market Funds [Member] Municipal securities Municipal Bonds [Member] Commercial paper Commercial Paper [Member] US Treasury securities US Treasury Securities [Member] US Agency securities US Government Corporations and Agencies Securities [Member] Certificates of deposit Certificates of Deposit [Member] Foreign government obligations Foreign Government Short-term Debt Securities [Member] Supranational securities Supranational Securities [Member] Supranational Securities [Member] Cash and Cash Equivalents [Line Items] Cash and Cash Equivalents [Line Items] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Cash equivalents, unrealized loss Cash Equivalents, Accumulated Gross Unrealized Loss, before Tax Cash Equivalents, Accumulated Gross Unrealized Loss, before Tax Total cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Short-term investments, amortized cost Debt Securities, Available-for-sale, Amortized Cost Short-term investments, unrealized gain Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Total cash, cash equivalents, and short term investments, unrealized losses Cash, Cash Equivalents, And Short Term Investments, Accumulated Gross Unrealized Loss, Before Tax Cash, Cash Equivalents, And Short Term Investments, Accumulated Gross Unrealized Loss, Before Tax Short-term investments, unrealized loss Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Total cash, cash equivalents, and short term investments, before unrealized gains (losses) on investments Cash, Cash Equivalents, And Short Term Investments, Amortized Cost Cash, Cash Equivalents, And Short Term Investments, Amortized Cost Total cash, cash equivalents, and short term investments Cash, Cash Equivalents, and Short-term Investments Class A Class B Numerator Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Net loss attributable to common stockholders Denominator Weighted Average Number of Shares 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Geographical [Domain] United States UNITED STATES International Non-US [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Line of Credit Facility [Table] Line of Credit Facility [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Credit And Guarantee Agreement Credit And Guarantee Agreement [Member] Credit And Guarantee Agreement [Member] Revolving Credit Facility Revolving Credit Facility [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] Base Rate Base Rate [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Line of credit facility, maximum borrowing capacity Debt issuance fees Debt Issuance Costs, Line of Credit Arrangements, Gross Debt instrument, term Debt Instrument, Term Line of credit facility, accordion feature, increase limit Line Of Credit 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Acquisition Share-based Compensation Arrangement by Share-based Payment Award, Options, Assumed Through Business Acquisition Weighted average grant date fair value of stock options assumed (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Assumed in Period, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Assumed in Period, Weighted Average Grant Date Fair Value Fair value of options assumed in business combination Share-based Compensation Arrangement by Share-based Payment Award, Options, Assumed Through Business Acquisition, Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Assumed Through Business Acquisition, Fair Value Post combination, stock-based compensation expense Allocated Share-based Compensation Expense, Post Combination Allocated Share-based Compensation Expense, Post Combination Restricted Stock Units (RSUs) Expiration period Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Number of tranches Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Tranches Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Tranches Percentage vested maximum Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Weighted average grant date fair value (in dollars per share) Unamortized stock-based compensation, requisite service period Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Stock-based compensation related to the Co-Founder Grants Remaining unamortized stock-based compensation Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Reversal Of Stock Based Compensation Previously Recognized Reversal Of Stock Based Compensation Previously Recognized Reversal Of Stock Based Compensation Previously Recognized 2018 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Commissions Deprecation, Depletion And Amortization (Excluding Amortization Of Deferred Sales Commissions Stock-based compensation Share-based Payment Arrangement, Noncash Expense Net gains on equity investments Equity Securities, FV-NI, Gain (Loss) Other Other Noncash Income (Expense) Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Trade and other receivables, net Increase (Decrease) in Accounts and Other Receivables Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Other assets Increase (Decrease) in Other Operating Assets Accounts payable Increase (Decrease) in Accounts Payable Accrued and other current liabilities Increase (Decrease) In Accrued Liabilities And Other Liabilities Increase (Decrease) In Accrued Liabilities and Other Liabilities Accrued compensation and benefits Increase (Decrease) in Employee Related Liabilities Deferred revenue Increase (Decrease) in Contract with Customer, Liability Other non-current liabilities Increase (Decrease) in Other Noncurrent Liabilities Tenant improvement allowance reimbursement Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flow from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures Payments to Acquire Property, Plant, and Equipment Business combinations, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Purchases of short-term investments Payments to Acquire Debt Securities, Available-for-sale Proceeds from sales of short-term investments Proceeds from Sale of Short-term Investments Proceeds from maturities of short-term investments Proceeds from Maturities, Prepayments and Calls of Short-term Investments Other Payments for (Proceeds from) Other Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flow from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Shares repurchased for tax withholdings on release of restricted stock units and awards Payment, Tax Withholding, Share-based Payment Arrangement Proceeds from issuance of common stock, net of repurchases Proceeds from Issuance of Common Stock Principal payments on finance lease obligations Finance Lease, Principal Payments Common stock repurchases Payments for Repurchase of Common Stock Other Proceeds from (Payments for) Other Financing Activities Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Change in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents - beginning of period Cash and cash equivalents - end of period Supplemental cash flow data: Supplemental Cash Flow Information [Abstract] Property and equipment acquired under finance leases Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Assets acquired: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] Cash and cash equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Short-term investments Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities Acquisition-related intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Accounts receivable, prepaid and other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables, Prepaid Expense And Other Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables, Prepaid Expense And Other Assets Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Liabilities assumed: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract] Accounts payable, accrued and other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Deferred revenue Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue Deferred tax liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Total liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Net assets acquired, excluding goodwill Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Total purchase consideration Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Schedule of Estimated Useful Lives of Property and Equipment