Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Weighted average remaining contractual term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted-Average Remaining Contractual Term Schedule of Components of Other Noncurrent Assets Schedule of Other Assets, Noncurrent [Table Text Block] Maximum Maximum [Member] Range [Domain] Statistical Measurement [Domain] Operating lease, ROU asset, impairment loss Operating Lease, Right-Of-Use Asset, Impairment Loss Operating Lease, Right-Of-Use Asset, Impairment Loss Restructuring Activity 2025 Restructuring Activity 2025 [Member] Restructuring Activity 2025 Title of 12(b) Security Title of 12(b) Security Document Fiscal Year Focus Document Fiscal Year Focus Office furniture and other equipment Other Capitalized Property Plant and Equipment [Member] Revenue, remaining performance obligation, expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Acquisition related costs Business Combination, Acquisition-Related Cost, Expense Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Other Current Assets Other Assets, Fair Value Disclosure Non-vested restricted stock unit activity Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Segment Reporting [Abstract] Future Expense Time Period [Domain] Future Expense Time Period [Domain] Future Expense Time Period EARNINGS PER SHARE AND STOCKHOLDERS’ EQUITY Earnings Per Share And Stockholders Equity Disclosure [Text Block] 2027 Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Remainder Of Fiscal Year Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Remainder Of Fiscal Year Schedule of Estimated Future Amortization Expenses related to Purchases and Other Intangible Assets Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block] Restructuring Plan [Axis] Restructuring Plan [Axis] Common stock Common Stock, Value, Issued 2028 Lessee, Operating Lease, Liability, to be Paid, Year One Shares repurchased for tax withholdings upon vesting of stock-based awards Payment, Tax Withholding, Share-Based Payment Arrangement Accrued payroll and related expenses Employee-related Liabilities, Current Time Based Vesting Time-Based Vesting [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Other miscellaneous noncurrent assets Other Assets, Miscellaneous, Noncurrent Restatement Determination Date Restatement Determination Date Schedule of Gains, Losses and Other Items Other Operating Income And Expense [Table Text Block] Deferred commissions, net Contract with Customer, Asset, after Allowance for Credit Loss Balance at beginning of period Balance at end of period Accounts Receivable, Allowance for Credit Loss Amendment Flag Amendment Flag Goodwill information Goodwill [Line Items] Current liabilities: Liabilities, Current [Abstract] Provision for doubtful accounts Additions charged to costs and expenses Accounts Receivable, Credit Loss Expense (Reversal) Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Performance stock Performance Stock [Member] Leases [Abstract] Other comprehensive income (loss): Comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Property, Plant, and Equipment [Abstract] Entity Address, State or Province Entity Address, State or Province Stock grants to non-employee directors (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par or stated value (in dollars per share) Common Stock, Par or Stated Value Per Share Change in foreign currency translation adjustment Foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Intangible assets, net Intangible Asset, Excluding Goodwill, after Accumulated Amortization Outstanding at the beginning of the period (in shares) Outstanding at the end of the period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Share Repurchase Program [Domain] Share Repurchase Program [Domain] Basic weighted-average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Time-based vesting Share-Based Payment Arrangement, Tranche One [Member] Common Stock Repurchase Program Common Stock Repurchase Program [Member] Data processing equipment Technology Equipment [Member] The total fair value of performance-based restricted stock units Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value2 Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value2 Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Number of reportable segments Number of Reportable Segments Phoenix Phoenix [Member] Phoenix Total current liabilities Liabilities, Current 2031 Lessee, Operating Lease, Liability, to be Paid, Year Four 2028 Time Period Two [Member] Time Period Two The Netherlands NETHERLANDS Entity Address, City or Town Entity Address, City or Town Schedule of Effect of Stock-based Compensation Expense on Income, by Financial Statement Line Item Share-based Compensation Arrangements by Share-based Payment Award, Stock-based Compensation Expense On Income, By Financial Statement Line Item [Table Text Block] Share-based Compensation Arrangements by Share-based Payment Award, Stock-based Compensation Expense On Income, By Financial Statement Line Item Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Share-based compensation Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Vesting in period (in shares) Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Total intangible assets, net Intangible Asset, Finite-Lived, after Accumulated Amortization Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Total accumulated amortization Intangible Asset, Finite-Lived, Accumulated Amortization Operating sublease income Sublease Income Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] 2030 Lessor, Operating Lease, Payment to be Received, Year Three United States U.S. UNITED STATES San Francisco San Francisco [Member] San Francisco Accounting Pronouncements Adopted During the Current Year and Recent Accounting Pronouncements Not Yet Adopted New Accounting Pronouncements, Policy [Policy Text Block] Marketplace and Other Marketplace And Other [Member] Purchases of property, plant and equipment remaining unpaid at period end Capital Expenditures Incurred but Not yet Paid Grantee Status [Axis] Grantee Status [Axis] Schedule of Segment Reporting Segment Reporting [Table Text Block] Schedule of Other Accrued Expenses Schedule of Accrued Liabilities [Table Text Block] Non-cash stock-based compensation (in shares) Adjustments To Additional Paid In Capital Share Based Compensation Requisite Service Period Recognition Shares PROPERTY AND EQUIPMENT Property, Plant, and Equipment [Text Block] Schedule of Future Minimum Payments under all Operating Leases Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Exercise price per share, high end of range (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit Document Period End Date Document Period End Date Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Forfeited or canceled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Net cash provided by (used in) continuing operations Cash Provided by (Used in) Continuing Operation Range of exercise price per share from $1.20 to $9.99 Range One Of Exercise Prices [Member] Deferred revenue Increase (Decrease) in Contract with Customer, Asset 2029 Lessee, Operating Lease, Liability, to be Paid, Year Two Basic earnings per share: Earnings Per Share, Basic [Abstract] Operating expenses Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Treasury stock, at cost Common stock, at cost Treasury Stock, Common, Value Net operating lease payments Lessee, Operating Lease, Liability, Payments, Net Sublease Income, Fiscal Year Maturity [Abstract] Lessee, Operating Lease, Liability, Payments, Net Sublease Income, Fiscal Year Maturity [Abstract] Basic earnings per share: Earnings Per Share, Basic, Other Disclosure [Abstract] Restricted stock units, performance-based Performance Based Vesting [Member] Performance Based Vesting Subscription Subscription [Member] Vested in period, fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Total shares reserved for issuance since inception of the stock option and equity compensation plans (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Short-term lease liabilities included in other accrued expenses Short-term lease liabilities Operating Lease, Liability, Current Schedule of Activity of the Allowance For Credit Losses, Returns And Credits Accounts Receivable, Allowance for Credit Loss [Table Text Block] Schedule of Property, Plant and Equipment Property, Plant, and Equipment [Table Text Block] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Name Outstanding Recovery, Individual Name Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Less: Interest and short-term leases Lessor, Operating Lease, Payment to be Received, Undiscounted Excess Amount Lessor, Operating Lease, Payment to be Received, Undiscounted Excess Amount Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] 2028 Purchase Obligation, to be Paid, Year One Trading Symbol Trading Symbol Schedule of Other Liabilities Other Liabilities [Table Text Block] Geographical [Domain] Geographical [Domain] Capital expenditures Payments to Acquire Property, Plant, and Equipment Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Stock options Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Company Selected Measure Name Company Selected Measure Name Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Options outstanding - Weighted-average remaining contractual life Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted-Average Remaining Contractual Term Diluted earnings per share: Earnings Per Share, Diluted [Abstract] Asset Class [Domain] Asset Class [Domain] Schedule of Stock Options Outstanding and Exercisable Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] Stock repurchase program, authorized additional amount Stock Repurchase Program, Additional Authorized Amount Stock Repurchase Program, Additional Authorized Amount Other Other Sundry Liabilities, Noncurrent Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted weighted-average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] ALLOWANCE FOR CREDIT LOSSES Allowance for Credit Losses [Text Block] Qualified Employee Stock Purchase Plan Qualified Employee Stock Purchase Plan [Member] Qualified Employee Stock Purchase Plan Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Schedule of Components of Other Current Assets Schedule of Other Current Assets [Table Text Block] Disposal Group Name [Domain] Disposal Group Name [Domain] Credit Loss [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Consideration Holdback Consideration Holdback [Member] Consideration Holdback Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Share-Based Payment Arrangement, Option, Exercise Price Range [Table] Exercise price per share, low end of range (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit Options exercisable (in shares) Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable Award vesting rights percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Less: Interest and short-term leases Lessee, Operating Lease, Liability, Undiscounted Excess Amount Options outstanding - Weighted-average exercise price per share (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Reportable Segment Reportable Segment [Member] Reportable Segment Other Accrued Expenses [Abstract]. n/a Gross profit Gross Profit Total from continuing operations Continuing Operations [Member] Revenue from Contract with Customer [Abstract] Dilutive effect of common stock options and restricted stock units as computed under the treasury stock method (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment GOODWILL Goodwill [Text Block] Assets of non-qualified retirement plan Non-qualified Retirement Plan [Member] Non-qualified Retirement Plan Thereafter Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due After Year Four Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due After Year Four Lease-related impairment and restructuring charges Long-Lived Asset, Held and Used, Impairment Loss Cash paid for operating lease liabilities Operating Lease, Payments Award Timing Predetermined Award Timing Predetermined [Flag] Less: Interest and short-term leases Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Undiscounted Excess Amount Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Undiscounted Excess Amount Treasury Stock Treasury Stock, Common [Member] Intangible Asset, Goodwill and Other [Abstract] Exercised - Aggregate Intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Total non-cash stock-based compensation included in the condensed consolidated statements of equity APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level 1: Fair Value, Inputs, Level 1 [Member] Developed technology, gross Software, Internally Developed [Member] Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Grantee Status [Domain] Grantee Status [Domain] Gain on sale of strategic investments Gain (Loss) on Sale of Investments Total undiscounted lease payments Lessee, Operating Lease, Liability, to be Paid Non-cash stock-based compensation APIC, Share-Based Payment Arrangement, Other, Increase for Cost Recognition Outstanding at the beginning of the period (in dollars per share) Outstanding at the end 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 All Executive Categories All Executive Categories [Member] Restructuring charges and adjustments Employee-related restructuring plan charges Restructuring Reserve Charges and Adjustments Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Depreciation expense Depreciation OTHER LIABILITIES Other Liabilities Disclosure [Text Block] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] Exercise Price Range [Domain] Vesting [Domain] Vesting [Domain] Plan Name [Domain] Plan Name [Domain] Thereafter Lessee, Operating Lease, Liability, to be Paid, Due after Year Four Lessee, Operating Lease, Liability, to be Paid, Due after Year Four Antidilutive Securities [Axis] Antidilutive Securities [Axis] Outstanding at the beginning of the period (in dollars per share) Outstanding at the end of the period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Right-of-use assets included in other assets, net Right-of-use assets Operating Lease, Right-of-Use Asset Sales and marketing Selling and Marketing Expense STOCK-BASED COMPENSATION Shareholders' Equity and Share-Based Payments [Text Block] United States and Europe United States And Europe [Member] United States And Europe Schedule of Reconciliation of Numerator And Denominator of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] SEGMENT AND GEOGRAPHIC INFORMATION Segment Reporting [Text Block] Minimum Minimum [Member] Deposits Deposits Assets, Noncurrent Payments expected under noncancellable subleases Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Abstract] Expiration Date Trading Arrangement Expiration Date Short-Term Investments Investments, Fair Value Disclosure Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Schedule of Intangible Assets Intangible Asset, Finite-Lived, Amortization Expense [Table Text Block] Effect of exchange rate changes on cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Leasehold improvements, impairment loss Operating Lease, Leasehold Improvements, Impairment Loss Operating Lease, Leasehold Improvements, Impairment Loss Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Cash and Cash Equivalents Cash and Cash Equivalents, Fair Value Disclosure Balance, beginning of the period Balance, end of the period Equity, Including Portion Attributable to Noncontrolling Interest Outstanding - Weighted average remaining contractual term Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted-Average Remaining Contractual Term Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Business Combination [Line Items] Business Combination [Line Items] Exercisable at the end of the period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Proceeds related to the issuance of common stock under stock and employee benefit plans Proceeds from Issuance of Common Stock Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Schedule of Time-vesting Restricted Stock Unit Activity Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Exercise Price Award Exercise Price Schedule of Restructuring and Related Costs [Table] Restructuring Cost [Table] Facility Closing Facility Closing [Member] Segment Reporting [Line Items] Segment Reporting [Line Items] Stock repurchase program, authorized amount Share Repurchase Program, Authorized, Amount Merger Agreement, Effective Time Merger Agreement, Effective Time [Member] Merger Agreement, Effective Time Future expense for performance stock option units Expected future expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Quarterly Report Document Quarterly Report 2028 Lessor, Operating Lease, Payment to be Received, Year One Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Europe Europe [Member] Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Common Stock Common Stock Including Additional Paid in Capital [Member] Proceeds from sale of strategic investment Proceeds from Sale of Debt Securities, Available-for-Sale 2029 Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year Two Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year Two Operating Activities [Domain] Operating Activities [Domain] Schedule of Contractual Obligation, Fiscal Year Maturity Contractual Obligation, Fiscal Year Maturity [Table Text Block] Leasehold improvements Building Improvements [Member] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Restructuring reserve, at the beginning of the period Restructuring reserve, at the end of the period Restructuring reserve Restructuring Reserve Business Combination [Table] Business Combination [Table] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Trade accounts payable Accounts Payable, Trade, Current Adoption Date Trading Arrangement Adoption Date Purchases of strategic investments Payments to Acquire Equity Method Investments Total stockholders' equity Equity, Attributable to Parent Total other income, net Total other income, net Nonoperating Income (Expense) Restructuring Type [Axis] Restructuring Type [Axis] 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 Other Liabilities Disclosure [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Paris, France Paris, France [Member] Paris, France 2028 Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year One Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year One Total discounted operating lease liabilities Operating Lease, Liability Insider Trading Policies and Procedures [Line Items] Outstanding at beginning of the period (in shares) Outstanding at end of the period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number OTHER ACCRUED EXPENSES Accounts Payable and Accrued Liabilities Disclosure [Text Block] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Deferred income taxes Deferred Income Tax Expense (Benefit) Type of Restructuring [Domain] Type of Restructuring [Domain] Business Combination [Domain] Business Combination [Domain] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items] Forfeited or canceled (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Number of operating segments Number of Operating Segments Anti-dilutive equity awards under stock-based award plans excluded from the determination of diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Restricted stock units Restricted Stock Units (RSUs) [Member] Schedule of Changes in Goodwill Goodwill [Table Text Block] 2029 Time Period Three [Member] Time Period Three Entity Central Index Key Entity Central Index Key Less accumulated depreciation and amortization Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Additional paid-in capital Additional Paid in Capital, Common Stock All Adjustments to Compensation All Adjustments to Compensation [Member] Business Combination [Axis] Business Combination [Axis] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other 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 Income Statement [Abstract] Income Statement [Abstract] Stockholders' equity: Equity, Attributable to Parent [Abstract] Stock issued during period, ESPP (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Document Transition Report Document Transition Report Fair Value, Hierarchy [Axis] Fair Value Hierarchy and NAV [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] Deferred income taxes Deferred Income Tax Assets, Net Non-cash stock-based compensation expense Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Philadelphia Philadelphia [Member] Philadelphia Schedule of Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Table Text Block] Stock Option Activity - Number of Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Total discounted operating lease liabilities Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, After Discount Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, After Discount City Area Code City Area Code Restricted Stock Restricted Stock [Member] Accumulated other comprehensive income AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Name Forgone Recovery, Individual Name Performance Shares Vesting Total Shareholder Return Performance Shares Vesting Total Shareholder Return [Member] Assets of non-qualified retirement plan Non-Qualified Retirement Plan, Assets For Plan Benefits, Current Other Other Countries [Member] Other Countries Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Non-vested restricted stock units, Weighted average fair value per share at grant date Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] INTANGIBLE ASSETS Intangible Asset [Text Block] Statement [Line Items] Statement [Line Items] Total assets Assets Operating lease payments Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Total non-cash stock-based compensation included in the condensed consolidated statements of operations Total non-cash stock-based compensation included in the condensed consolidated statements of operations Allocated Share-based Compensation Expense, Employee And Non-Employee Schedule of Stock-based Compensation Activity, by Award Type Share-Based Payment Arrangement, Outstanding Award, Activity, Excluding Option [Table Text Block] Interest expense Interest Expense, Nonoperating 2027 Time Period One [Member] Time Period One Strategic investments Strategic investments without readily determinable fair values Equity Securities without Readily Determinable Fair Value, Amount EARNINGS (LOSS) PER SHARE AND STOCKHOLDERS' EQUITY: EARNING (LOSS) PER SHARE AND STOCKHOLDERS’ EQUITY [Abstract] Stock issued during period, ESPP, value Stock Issued During Period, Value, Employee Stock Purchase Plan Other assets Increase (Decrease) in Other Operating Assets PEO PEO [Member] Deferred commissions Increase (Decrease) in Deferred Charges Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Operating Metrics Performance Plan Operating Metrics Performance Plan [Member] Operating Metrics Performance Plan Share-based compensation expense Share-Based Payment Arrangement, Expense Performance-Based Restricted Stock Units Under The Total Shareholder Return Performance Plan Performance-Based Restricted Stock Units Under The Total Shareholder Return Performance Plan [Member] Performance-Based Restricted Stock Units Under The Total Shareholder Return Performance Plan Other liabilities Other liabilities Other Liabilities, Noncurrent Goodwill Goodwill at the beginning of year Goodwill at the end of year Goodwill Goodwill Number of available shares (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period 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 Loss on marketable equity securities Equity Securities, FV-NI, Gain (Loss) Long-term lease liabilities included in other liabilities Long-term lease liabilities Operating Lease, Liability, Noncurrent Retained earnings Retained Earnings [Member] Total operating expenses Operating Expenses Money market funds Money Market Funds [Member] ROU asset group impairments and adjustments Operating Lease, Impairment Loss Forfeited or 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 Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Balance, beginning of the period (in shares) Balance, end of the period (in shares) Common Stock, Shares, Outstanding Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Award Timing Disclosures [Line Items] Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total discounted operating lease liabilities Lessor, Operating Lease, Payment to be Received, Net Of Discount Lessor, Operating Lease, Payment to be Received, Net Of Discount Total Shareholder Return Amount Total Shareholder Return Amount Liabilities of non-qualified retirement plan Liability Non Qualified Retirement Plan Other noncurrent assets Other Assets, Noncurrent [Abstract] Amortization expense Intangible Asset, Finite-Lived, Amortization Expense Release in period (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Release In Period Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Release In Period Accumulated other comprehensive income balances Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Intangible Asset, Finite-Lived [Line Items] Intangible Asset, Finite-Lived [Line Items] Research and development Research and Development Expense Non-cash operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Employee stock awards, benefit plans and other issuances Stock Issued During Period, Value, Employee Stock Plan, Options Exercised Benefit Plans And Other Issuances Bad debts written off, net of amounts recovered Accounts Receivable, Allowance for Credit Loss, Writeoff United States, Europe and Asia Pacific United States, Europe and Asia Pacific [Member] United States, Europe and Asia Pacific Share-Based Payment Arrangement [Abstract] Revenues Revenue from Contract with Customer, Excluding Assessed Tax Property and equipment, net of accumulated depreciation and amortization Property and equipment, net of accumulated depreciation and amortization Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Shares issued, price per share (in dollars per share) Shares Issued, Price Per Share Options outstanding (in shares) Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding Schedule of Employee Related Costs Net of Stock Based Compensation Schedule Of Employee Related Costs Net Of Stock Based Compensation [Table Text Block] Schedule Of Employee Related Costs Net Of Stock Based Compensation Financial Instruments [Domain] Financial Instruments [Domain] Lease accruals Contract Termination [Member] Schedule of Restructuring Activity Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Other changes Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) Underlying Securities Award Underlying Securities Amount Schedule of Accounting Pronouncements Adopted During the Current Year and Recent Accounting Pronouncements not yet Adopted Accounting Standards Update and Change in Accounting Principle [Table Text Block] REVENUE FROM CONTRACTS WITH CUSTOMERS Revenue from Contract with Customer [Text Block] Prepaid expenses and other Prepaid Expense, Current Restructuring Activity 2026 Restructuring Activity 2026 [Member] Restructuring Activity 2026 2031 Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year Four Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year Four Customer relationship/trade name, gross Customer Relationships And Trade Names [Member] Customer Relationships And Trade Names 2030 Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year Three Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Year Three Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Exercise Price Range [Axis] Exercise Price Range [Axis] Employee stock awards, benefit plans and other issuances (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plan, Options Exercised Benefit Plans And Other Issuances Segment Reporting [Table] Segment Reporting [Table] Shares which remained available for future grants (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Excise tax payable on net stock repurchases Share Repurchase Program, Excise Tax Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Cash Cash [Member] Schedule of Right-of-use Asset, Lease Liability Balances and Lease Cost Lease, Cost [Table Text Block] Habu consideration holdback Business Combination, Contingent Consideration, Liability, Current Other current assets Other current assets Other Assets, Current 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 miscellaneous accrued expenses Other Accrued Expenses Current Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Income from operations Operating Income (Loss) Revenue, remaining performance obligation Revenue, Remaining Performance Obligation, Amount Asia-Pacific ("APAC") Asia Pacific [Member] Current Fiscal Year End Date Current Fiscal Year End Date Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Long-lived assets Long-Lived Asset, Excluding Financial Instrument, Customer Relationship, Mortgage Servicing Right, Deferred Policy Acquisition Cost, and Deferred Tax Asset, Amount Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Restricted stock units vested Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Equity securities Equity Securities [Member] Schedule of Non-vested Performance-based Restricted Stock Units Activity Schedule of Nonvested Performance-Based Units Activity [Table Text Block] Schedule of Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Impairment charges Asset, Impairment Loss Weighted-average exercise price per share Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Operating lease, right-of-use asset, statement of financial position [Extensible Enumeration] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Measure: Measure [Axis] OTHER CURRENT AND NONCURRENT ASSETS Other Assets Disclosure [Text Block] Restructuring Activity 2021 Restructuring Activity 2021 [Member] Restructuring Activity 2021 Treasury stock, beginning balance (in shares) Treasury stock, ending balance (in shares) Common stock, at cost (in shares) Treasury Stock, Common, Shares Total undiscounted lease payments Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due Lessee, Operating Lease, Liability, Payments, Net Of Sublease Income, Due 2029 Purchase Obligation, to be Paid, Year Two Equity Components [Axis] Equity Components [Axis] Accounts receivable, net Increase (Decrease) in Accounts Receivable Products and Services [Domain] Product and Service [Domain] Cash paid for income taxes, net Income Tax Paid, after Refund Received Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Entity Interactive Data Current Entity Interactive Data Current Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Entity Small Business Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent 2030 Lessee, Operating Lease, Liability, to be Paid, Year Three Termination Date Trading Arrangement Termination Date Property, Plant, and Equipment [Line Items] Property, Plant, and Equipment [Line Items] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Business combination, contingent consideration, liability, expected costs Business Combination, Contingent Consideration, Liability, Expected Costs Business Combination, Contingent Consideration, Liability, Expected Costs Lease restructuring accruals and related sublease deposits Restructuring Reserve, Noncurrent Income taxes Increase (Decrease) in Income Taxes 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] Uncertain tax positions Liability for Uncertainty in Income Taxes, Noncurrent Other assets, net Other assets, net Other Assets, Noncurrent Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Document Type Document Type Cash paid in acquisitions, net of cash received Payments to Acquire Businesses, Net of Cash Acquired Fair value of assets and liabilities Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value as of Grant Date Award Grant Date Fair Value Conversion price (in dollars per share) Business Combination, Common Stock, Conversion Price Business Combination, Common Stock, Conversion Price Future Expense Time Period [Axis] Future Expense Time Period [Axis] Future Expense Time Period Operating Activities [Axis] Operating Activities [Axis] Loss on disposal or impairment of assets Gain (Loss) on Disposition of Assets Schedule of Goodwill and Intangible Assets [Table] Goodwill [Table] Exercisable at the end of the period - Aggregate Intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Stock repurchase program, remaining amount Share Repurchase Program, Remaining Authorized, Amount Arrangement Duration Trading Arrangement Duration Group Of Foreign Countries All Foreign Countries [Member] Represents information pertaining to specified group of foreign countries. Statement of Stockholders' Equity [Abstract] Purchase Obligation, Fiscal Year Maturity [Abstract] Purchase Obligation, Fiscal Year Maturity [Abstract] Local Phone Number Local Phone Number Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Income from operations 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] Commitments and contingencies (Note 12) Commitments and Contingencies Total intangible assets, gross Intangible Asset, Finite-Lived, before Accumulated Amortization Property, plant and equipment, gross Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Accounts payable and other liabilities 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] 2030 Time Period Four [Member] Time Period Four International Operating Metrics Performance Plan International Operating Metrics Performance Plan [Member] International Operating Metrics Performance Plan Schedule of Changes in Restricted Stock Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] Vesting period (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Goodwill Goodwill [Roll Forward] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Exercisable - Weighted average remaining contractual term Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted-Average Remaining Contractual Term 2031 Lessor, Operating Lease, Payment to be Received, Year Four Schedule of Financial Assets and Liabilities Measured at Fair Value Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Employee-related expenses, net of stock compensation expenses Labor and Related Expense, Excluding Share-Based Compensation Labor and Related Expense, Excluding Share-Based Compensation Equity Award [Domain] Award Type [Domain] Restructuring Activity 2024 Restructuring Activity 2024 [Member] Restructuring Activity 2024 London, England London, England [Member] London, England Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount 2027 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year FAIR VALUE OF FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Share price (in dollar per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Closing Market Price Share-Based Compensation Arrangement by Share-Based Payment Award, Closing Market Price Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Acquisition of treasury stock, including transaction costs and excise tax (in shares) Acquisition of common stock (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 [Axis] Geographical [Axis] Total undiscounted lease payments Lessor, Operating Lease, Payment to be Received Property, Plant and Equipment, Type [Axis] Long-Lived Asset, Class [Axis] Schedule of Share-based Compensation Arrangement by Share Based Payment Award, Future Expense Schedule of Share Based Compensation Arrangement By Share Based Payment Award, Future Expense, By Award Type [Table Text Block] Schedule of Share Based Compensation Arrangement By Share Based Payment Award, Future Expense, By Award Type Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Options exercisable - Weighted-average exercise price per share (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price Restricted stock units, time-vesting Time-Vesting [Member] Time-Vesting Habu Habu [Member] Habu Acquisition of treasury stock, including transaction costs and excise tax Treasury Stock, Value, Acquired, Cost Method Payments Payments for Restructuring Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Schedule of Finite-Lived Intangible Assets [Table] Intangible Asset, Finite-Lived [Table] Other accrued expenses Other accrued expenses Other Accrued Liabilities, Current Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] India INDIA 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] Liability-based equity awards Liability Based Award [Member] Habu acquisition consideration holdback Habu Consideration Holdback [Member] Habu Consideration Holdback Non-cash stock compensation expense Less: stock compensation expenses Share-Based Payment Arrangement, Noncash Expense Employee-related expenses Labor and Related Expense Total leases costs, net Lease, Cost Disposal Group Name [Axis] Disposal Group Name [Axis] Employee stock purchase plan Employee Stock [Member] LEASES Lessee, Operating Leases [Text Block] Basic earnings per share (in dollars per share) Earnings Per Share, Basic Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Acquisition of treasury stock Acquisition of treasury stock Payments for Repurchase of Common Stock Deferred revenue Contract with Customer, Liability, Current Total current assets Assets, Current Range [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Award Type [Axis] Award Type [Axis] Stock Option and Equity Compensation Plans Stock Option And Equity Compensation Plans [Member] 2027 Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Trade accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Retained earnings Retained Earnings (Accumulated Deficit) Restructuring and Related Activities [Abstract] Products and Services [Axis] Product and Service [Axis] Covey Merger Sub, Inc. Covey Merger Sub, Inc. [Member] Covey Merger Sub, Inc. 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] Deferred tax liability not recognized, amount of unrecognized deferred tax liability, bad debt reserve for tax purposes of qualified lender Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Bad Debt Reserve for Tax Purposes of Qualified Lender Business combination, contingent consideration, liability Business Combination, Contingent Consideration, Liability Employee-related reserves Employee Severance [Member] Operating lease costs Operating Lease, Cost Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover page. Cover [Abstract] A2023 Performance Shares That Will Vest In One Year 2024 Performance Shares That Will Vest In One Year [Member] 2024 Performance Shares That Will Vest In One Year Amount Intangible Asset, Finite-Lived, after Accumulated Amortization, Estimated Amortization Expense, Fiscal Year Maturity [Abstract] Change in foreign currency translation adjustment Goodwill, Foreign Currency Translation, Gain (Loss) Equity Awards Adjustments Equity Awards Adjustments [Member] 2027 Purchase Obligation, to be Paid, Remainder of Fiscal Year Other non-operating gains (losses) Other Nonoperating Gains (Losses) Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Total liabilities and stockholders' equity Liabilities and Equity 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] Schedule of Future Minimum Payments under Sublease Income Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Asset Class [Axis] Asset Class [Axis] Lease-related restructuring plan charges and adjustments Restructuring Charges Plan Name [Axis] Plan Name [Axis] Tabular List, Table Tabular List [Table Text Block] Vesting [Axis] Vesting [Axis] Thereafter Lessor, Operating Lease, Payment to be Received, after Year Four Lessor, Operating Lease, Payment to be Received, after Year Four 2027 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year Gains, losses and other items, net Gains, losses and other items, net Other Operating Income (Expense), Net Refundable income taxes, net Income Taxes Receivable, Current Name Awards Close in Time to MNPI Disclosures, Individual Name 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] Outstanding at the end of the period - Aggregate Intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Forfeited in period (in shares) Forfeited or canceled (in shares) Forfeited or canceled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period General and administrative General and Administrative Expense Boston Boston [Member] Boston Property, Plant and Equipment, Type [Domain] Long-Lived Asset, Class [Domain] Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Table] Preferred stock Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES Restructuring and Related Activities Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total assets Assets, Fair Value Disclosure Name Measure Name INCOME TAX Income Tax Disclosure [Text Block] Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional paid-In capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Number of leased office space exited Number Of Leased Office Space Exited Number Of Leased Office Space Exited Short-term investments Short-Term Investments Name Trading Arrangement, Individual Name Future share-based compensation expense expected Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Cash and cash equivalents Cash and Cash Equivalent Directors stock-based compensation Directors Stock-Based Compensation [Member] Directors Stock-Based Compensation Other current assets Prepaid Expense and Other Assets, Current [Abstract] Operating lease, liability, current, statement of financial position [Extensible Enumeration] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Company Selected Measure Amount Company Selected Measure Amount Depreciation and amortization Depreciation, Depletion and Amortization Restructuring reserve related charges Restructuring Reserve Related Charges Restructuring Reserve Related Charges Entity Address, Address Line Two Entity Address, Address Line Two Number of performance plans Share-Based Compensation Arrangement by Share-Based Payment Award, Number Of Performance Plans Share-Based Compensation Arrangement by Share-Based Payment Award, Number Of Performance Plans Restricted stock units vested (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Stock, Class of Stock [Table] Stock, Class of Stock [Table] Current assets: Assets, Current [Abstract] Weighted average remaining lease term 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 assets obtained in exchange for operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability 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 Income tax expense (benefit) Income Tax Expense (Benefit) Aggregate fair value of restricted stock units granted Share Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period, Total Fair Value Cost of revenue Cost of Product and Service Sold Total Purchase Obligation Award Timing Method Award Timing Method [Text Block] Net change in cash, cash equivalents and restricted cash 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] 2029 Lessor, Operating Lease, Payment to be Received, Year Two Vesting over two years Share-Based Payment Arrangement, Tranche Three [Member] Net earnings Net earnings Net earnings Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Vesting over three years Share-Based Payment Arrangement, Tranche Two [Member] Operating lease, liability, noncurrent, statement of financial position [Extensible Enumeration] Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Restatement Determination Date: Restatement Determination Date [Axis] Certificates of deposit Certificates of Deposit [Member] Share-Based Payment Arrangement, Nonemployee Share-Based Payment Arrangement, Nonemployee [Member] Interest income Investment Income, Interest 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 Stock options outstanding and exercisable by exercise price range Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Significant Accounting Policies [Text Block] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]