Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Weighted average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Trading Arrangement: Trading Arrangement [Axis] Swingline Sub-facility Swingline Sub-facility [Member] Swingline Sub-facility Maximum Maximum [Member] Statistical Measurement Statistical Measurement [Domain] Federal Government Agencies Federal Government Agencies [Member] Federal Government Agencies Title of 12(b) Security Title of 12(b) Security Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-Sale [Table] Document Fiscal Year Focus Document Fiscal Year Focus Revenue, remaining performance obligation, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Attorney's Fees Associated Attorney's Fees Associated [Member] Attorney's Fees Associated Customer Customer [Axis] Segment Reporting [Abstract] Schedule of Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block] Other subscriptions Other Subscriptions [Member] Other Subscriptions Common stock Common Stock, Value, Issued 2027 Lessee, Operating Lease, Liability, to be Paid, Year One Payments for employee taxes related to the net share settlement of equity awards Payment, Tax Withholding, Share-Based Payment Arrangement Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Table] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Table] Schedule of Outstanding Debt Balances Schedule of Long-Term Debt Instruments [Table Text Block] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Restatement Determination Date Restatement Determination Date Proceeds from maturities of investments Proceeds from Sale, Maturity and Collection of Investments Total contract assets Contract with Customer, Asset, after Allowance for Credit Loss Damages from Competitive Situations Related to Counterclaims on Defamation Case With Pegasystems Damages From Competitive Situations Related To Counterclaims On Defamation Case With Pegasystems [Member] Damages From Competitive Situations Related To Counterclaims On Defamation Case With Pegasystems Vesting of restricted stock units (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Amendment Flag Amendment Flag Consolidated Entities Consolidated Entities [Axis] Current liabilities Liabilities, Current [Abstract] Average share price (in usd per share) Shares Acquired, Average Cost Per Share Computer software and hardware Computer Software And Hardware [Member] Computer Software And Hardware Bad debt expense Accounts Receivable, Credit Loss Expense (Reversal) Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Developed technology Developed Technology Rights [Member] Document and Entity Information [Line Items] Document And Entity Information [Line Items] Document and entity information. Gain Contingencies, Nature [Axis] Gain Contingencies, Nature [Axis] Unrealized Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Schedule of Components of Investments Debt Securities, Available-for-Sale [Table Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Leases [Abstract] Comprehensive income (loss), net of income taxes Other Comprehensive Income (Loss), Net of Tax [Abstract] Intangible Asset, Finite-Lived, Acquired [Line Items] Intangible Asset, Finite-Lived, Acquired [Line Items] Consolidated Entities Consolidated Entities [Domain] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Gain contingency, damages awarded, interest, percentage (percent) Gain Contingency, Damages Awarded, Interest, Percentage Gain Contingency, Damages Awarded, Interest, Percentage Property, Plant, and Equipment [Abstract] Entity Address, State or Province Entity Address, State or Province 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Pension Adjustments Prior Service Cost [Member] Company Selected Measure Name Company Selected Measure Name Misappropriation of Trade Secrets Misappropriation Of Trade Secrets [Member] Misappropriation Of Trade Secrets Income Tax Disclosure [Abstract] Unrealized gains (losses) on available-for-sale securities OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Long-term debt Long-Term Debt, Gross Credit Facility Credit Facility [Domain] Depreciation expense and amortization of intangible assets Depreciation, Depletion and Amortization, Nonproduction New Credit Agreement New Credit Agreement [Member] New Credit Agreement Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted (in shares) Weighted average number of shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote 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stock, shares authorized (in shares) Common Stock, Shares Authorized Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Finite-lived intangible asset, useful life Intangible Asset, Finite-Lived, Useful Life Accrued compensation and related benefits Accrued Employee Benefits, Current Exercise Price Award Exercise Price Vesting of restricted stock units Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Litigation Status [Axis] Litigation Status [Axis] Authorized to repurchase Share Repurchase Program, Authorized, Amount Total unrecognized compensation cost related to unvested restricted stock units Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Quarterly Report Document Quarterly Report Purchase commitment, period Long-Term Purchase Commitment, Period Capitalized contract cost, amortization period (in years) Capitalized 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[Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Secured Debt Secured Debt [Member] Adoption Date Trading Arrangement Adoption Date Total stockholders’ deficit Beginning balance Ending balance Equity, Attributable to Parent Total non-operating other expense (income) Nonoperating Income (Expense) Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Debt securities Debt Securities, Available-for-Sale, Amortized Cost Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Total operating lease liabilities Total Operating Lease, Liability Litigation, judgment preservation insurance, noncurrent Litigation, Judgment Preservation Insurance, Noncurrent Litigation, Judgment Preservation Insurance, Noncurrent Insider Trading Policies and Procedures [Line 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Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Accounts Receivable Accounts Receivable [Member] Income Statement [Abstract] Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Operating expenses Operating Expenses [Abstract] Deferred tax assets Deferred Income Tax Assets, Net Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Intangible Asset, Finite-Lived Intangible Asset, Finite-Lived [Table Text Block] Intangible Asset, Finite-Lived, Acquired [Table] Intangible Asset, Finite-Lived, Acquired [Table] Customer One Customer One [Member] Customer One Schedule of Revenue by Geography Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and 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Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] Total assets Assets Entity [Domain] Entity [Domain] Operating Leases Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Deferred Commissions Commissions Expense, Policy [Policy Text Block] Violation of Virginia Computer Crimes Act Violation of Virginia Computer Crimes Act [Member] Violation of Virginia Computer Crimes Act Stock-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Interest expense Interest Expense, Nonoperating Schedule of Stock-based Compensation Expense Included in Condensed Consolidated Statements of Operations Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Stock-Based Compensation Share-Based Payment Arrangement [Text Block] PEO PEO [Member] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Contract labor costs Accrued Contract Employment, Current Total stock-based compensation expense Share-Based Payment Arrangement, Expense Other liabilities Other Liabilities, Noncurrent Goodwill Beginning balance Ending balance Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Exercise of stock options (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Revenue recognized Contract with Customer, Liability, Revenue Recognized Payables and Accruals [Abstract] Taxes payable Taxes Payable, Current Accumulated Deficit Retained Earnings [Member] Non-current operating lease liabilities Operating lease liabilities, net of current portion Operating Lease, Liability, Noncurrent Total operating expenses Operating Expenses Money market fund Money 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flows from investing activities Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Cash Cash [Member] Schedule of Components of Lease Expense Lease, Cost [Table Text Block] Accrued Expenses Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Cash flows from operating activities Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Operating income Operating Income (Loss) Purchase obligation, to be paid, year four Purchase Obligation, to be Paid, Year Four Performance obligations Revenue, Remaining Performance Obligation, Amount Current Fiscal Year End Date Current Fiscal Year End Date Proceeds from borrowings Proceeds from Issuance of Debt Non-PEO NEO 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[Member] Entity Small Business Entity Small Business Other comprehensive income (loss), net of income taxes Comprehensive Income (Loss), Net of Tax, Attributable to Parent 2029 Lessee, Operating Lease, Liability, to be Paid, Year Three Termination Date Trading Arrangement Termination Date Litigation, judgment preservation insurance, cost Litigation, Judgment Preservation Insurance, Cost Litigation, Judgment Preservation Insurance, Cost Property, Plant, and Equipment [Line Items] Property, Plant, and Equipment [Line Items] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Statutory Post Judgement Interest on Judgmental Statutory Post Judgement Interest On Judgmental [Member] Statutory Post Judgement Interest On Judgmental Other current liabilities Other Liabilities, Current Other assets Other Assets, Noncurrent Cash flows from financing activities Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Document Type Document Type Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt Accrued expenses Total accrued expenses Accrued Liabilities, Current Fair Value as of Grant Date Award Grant Date Fair Value Amount awarded in settlement Litigation Settlement, Amount Awarded from Other Party Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Deferred revenue, net of current portion Contract with Customer, Liability, Noncurrent Accrued compensation and related benefits Increase Decrease In Accrued Compensation And Related Benefits Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Schedule of Supplemental Balance Sheet Information Assets And Liabilities, Lessee [Table Text Block] Disclosure of information about the operating lease, including right-of-use asset and the related lease liability. Intangible assets, gross Intangible Asset, Finite-Lived, before Accumulated Amortization Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 2030 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Goodwill [Roll Forward] Goodwill [Roll Forward] Office furniture and fixtures Office furniture and fixtures Furniture and Fixtures [Member] Liabilities and Stockholders’ Deficit Liabilities and Equity [Abstract] Intangible Asset, Finite-Lived, Class Intangible Asset, Finite-Lived, Class [Domain] Pegasystems Litigation Pegasystems Litigation [Member] Pegasystems Litigation Equity Award Award Type [Domain] Interest expense on operating lease liabilities Operating Lease, Interest Expense Operating Lease, Interest Expense Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount 2026 (excluding the nine months ended September 30, 2026) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Reimbursable employee expenses Other Employee-related Liabilities 2027 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One Repurchase of common stock (in shares) Number of shares repurchased (in shares) Treasury Stock, Shares, Acquired Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] PEO Name PEO Name Geographical Geographical [Axis] Leasehold improvements Leasehold Improvements [Member] Total contract liabilities Contract with Customer, Liability Total investments Cash, Cash Equivalents, and Short-Term Investments Cash paid for income taxes Income Tax Paid, before Refund Received Long-Lived Asset, Class Long-Lived Asset, Class [Axis] Concentration of Credit and Customer Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Legal Entity [Axis] Legal Entity [Axis] Repurchase of common stock Repurchase of common stock Treasury Stock, Value, Acquired, Cost Method Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Audit and tax expenses Accrued Professional Fees, Current Other accrued expenses Other Accrued Liabilities, Current Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Base Rate Base Rate [Member] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Organization and Description of Business Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Stock-based compensation Share-Based Payment Arrangement, Noncash Expense 2028 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two Disposal of property plant and equipment Property, Plant, and Equipment, before Accumulated Depreciation, Disposition Total Lease, Cost Customer Customer [Domain] Leases Lessee, Operating Leases [Text Block] Long-term Debt, Type Long-Term Debt, Type [Domain] Basic (in usd per share) Earnings (loss) per Class A and Class B share - basic (in usd per share) Earnings Per Share, Basic Repurchases of common stock Payments for Repurchase of Common Stock Deferred revenue Deferred revenue, current Contract with Customer, Liability, Current Total current assets Assets, Current Statistical Measurement Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Long-term debt Long-term debt Long-Term Debt, Excluding Current Maturities Award Type Award Type [Axis] Short-term lease cost Short-Term Lease, Cost Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts receivable, net of allowance of $3,912 and $3,362, respectively Accounts Receivable, after Allowance for Credit Loss, Current Accumulated deficit Retained Earnings (Accumulated Deficit) Products and Services Product and Service [Axis] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Work in process Property, Plant, And Equipment, Work In Process [Member] Property, Plant, And Equipment, Work In Process Operating lease cost Operating Lease, Cost Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] International Non-US [Member] Concentration risk percentage Concentration Risk, Percentage Concentration Risk Benchmark Concentration Risk Benchmark [Axis] Allowance for Expected Credit Losses Receivable [Policy Text Block] Foreign currency translation adjustments Goodwill, Foreign Currency Translation, Gain (Loss) Deferred commissions Increase Decrease In Deferred Commissions Equity Awards Adjustments Equity Awards Adjustments [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Total liabilities and stockholders’ deficit Liabilities and Equity Variable lease cost Variable Lease, Cost Stock options Share-Based Payment Arrangement, Option [Member] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Table] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Table] Other current and non-current liabilities Increase (Decrease) in Other Operating Liabilities Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Tabular List, Table Tabular List [Table Text Block] Other expense (income), net Other Nonoperating Income (Expense) Hosting costs and license fees Accrued Hosting Costs And License Fees, Current Accrued Hosting Costs And License Fees, Current 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five 2029 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three 2026 (excluding the nine months ended September 30, 2026) Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year Name Awards Close in Time to MNPI Disclosures, Individual Name Stockholders’ deficit Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Purchases of investments Payments to Acquire Investments Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] General and administrative General and Administrative Expense Long-Lived Asset, Class Long-Lived Asset, Class [Domain] Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Table] Adjustment to Compensation: Adjustment to Compensation [Axis] Litigation, judgment preservation insurance expense Litigation, Judgment Preservation Insurance Expense Litigation, Judgment Preservation Insurance Expense Class of Stock Class of Stock [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Credit Facility Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] 2031 Lessee, Operating Lease, Liability, to be Paid, Year Five Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional Paid-In Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Equipment Equipment [Member] Short-term investments and marketable securities Short-Term Investments Document And Entity Information [Table] Document And Entity Information [Table] Document and Entity Information [Table]. Payments for purchase obligation Payments For Purchase Obligation Payments For Purchase Obligation Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Unpaid debt issuance costs in accrued expenses Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Common stock shares issued not disclosed Common Stock Shares Issued Not Disclosed Common Stock Shares Issued Not Disclosed Investments, Debt and Equity Securities [Abstract] Income Taxes [Line Items] Income Taxes [Line Items] Income taxes. SOFR Secured Overnight Financing Rate (SOFR) [Member] Net unrecognized tax benefits which would impact effective tax rate if recognized Unrecognized Tax Benefits that Would Impact Effective Tax Rate Current assets Assets, Current [Abstract] Weighted average remaining lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Operating lease liabilities arising from obtaining right-of-use assets Non-cash operating lease liabilities arising from obtaining right-of-use assets Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Income tax expense Income Tax Expense (Benefit) Customer Concentration Risk Customer Concentration Risk [Member] Total cost of revenue Cost of Product and Service Sold Purchase obligation Purchase Obligation Award Timing Method Award Timing Method [Text Block] Net (decrease) increase in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Net income (loss) Net income (loss) Net income (loss) Net income Net Income (Loss) Attributable to Parent Long-term Debt, Type Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Proceeds from exercise of common stock options Proceeds from Stock Options Exercised Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Investment income, interest Investment Income, Interest Youyong Zou Litigation Youyong Zou Litigation [Member] Youyong Zou Litigation Lease Costs Lessee, Leases [Policy Text Block] Schedule of Contract Asset and Contract Liability Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Foreign currency transaction losses (gains), net Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Schedule of Supplemental Cash Flow Information Supplemental Cash Flow Information Related To Leases [Table Text Block] Supplemental Cash Flow Information Related To Leases Revenue Revenues [Abstract] Litigation damages sought Loss Contingency, Damages Sought, Value Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]