Accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Restricted cash, current
Restricted Cash, Current
Award Timing Predetermined
Award Timing Predetermined [Flag]
Remainder of 2026
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Entity File Number
Entity File Number
Additional Paid in Capital
Additional Paid-in Capital [Member]
Other Non-Current Assets
Other Noncurrent Assets [Member]
Tabular List, Table
Tabular List [Table Text Block]
Leases [Abstract]
Leases [Abstract]
Adjusted EBITDA
Operating Segment Profitability
The operating profitability of each segment, reflecting adjusted earnings before interest, taxes, depreciation and amortization.
Analytics
Analytics Segment [Member]
Analytics.
Acquired Finite Lived Intangible Assets [Line Items]
Intangible Asset, Acquired, Finite-Lived [Line Items]
Schedule of Dividends Declared Per Common Share and Total Amounts Declared, Distributed and Deferred
Dividends Declared [Table Text Block]
Recent Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Increase/(decrease)
Increase Decrease In Contract With Customer Liability Current
Increase (decrease) in contract with customer liability, current.
Accounts payable
Increase (Decrease) in Accounts Payable
Total reportable segment operating revenues
Reportable Segment, Aggregation before Other Operating Segment [Member]
Secured Overnight Financing Rate (SOFR)
Secured Overnight Financing Rate (SOFR) [Member]
Goodwill [Line Items]
Goodwill [Line Items]
Amortization expense of acquired intangible assets
Acquired Intangible Assets [Member]
Acquired intangible assets.
Trading Arrangements, by Individual
Trading Arrangements, by Individual [Table]
Basic (in USD per share)
Earnings Per Share, Basic
Adjustment to Compensation:
Adjustment to Compensation [Axis]
Named Executive Officers, Footnote
Named Executive Officers, Footnote [Text Block]
REVENUE RECOGNITION
Revenue from Contract with Customer [Text Block]
Schedule of Segment Profitability and Reconciliation to Net Income
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Remaining performance obligations
Revenue, Remaining Performance Obligation, Amount
Adjustment to Compensation, Amount
Adjustment to Compensation Amount
Percentage of operating revenues accounted for by major customer
Concentration Risk, Percentage
Deferred financing fees and premium remain unamortized
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net
Stock-based compensation expense
Share-Based Payment Arrangement, Noncash Expense
Employee Stock Option
Share-Based Payment Arrangement, Option [Member]
5.250% senior unsecured notes due 2035
Five Point Two Five Zero Percent Senior Unsecured Notes Due Two Thousand Thirty Five [Member]
Five Point Two Five Zero Percent Senior Unsecured Notes Due Two Thousand Thirty Five
Award Timing MNPI Disclosure
Award Timing MNPI Disclosure [Text Block]
Prepaid income taxes
Prepaid Taxes
Total Amount
Dividends, Common Stock, Cash
Total shareholders’ equity (deficit)
Beginning balance
Ending balance
Equity, Attributable to Parent
Other comprehensive income (loss):
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Insider Trading Policies and Procedures [Line Items]
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Abstract]
Current assets:
Assets, Current [Abstract]
Total liabilities and shareholders’ equity (deficit)
Liabilities and Equity
3.250% senior unsecured notes due 2033
Three Point Two Five Zero Percent Senior Unsecured Notes Due Two Thousand Thirty Three [Member]
Three point two five zero percent senior unsecured notes due two thousand thirty three.
Dividends paid in shares
Adjustments To Additional Paid In Capital, Dividends Paid In Shares
Adjustments To Additional Paid In Capital, Dividends Paid In Shares
Interest rate om the revolving loans
Line of Credit Facility, Interest Rate at Period End
Concentration Risk Benchmark
Concentration Risk Benchmark [Axis]
Concentrations
Concentration Risk, Credit Risk, Policy [Policy Text Block]
LIABILITIES AND SHAREHOLDERS’ EQUITY (DEFICIT)
Liabilities and Equity [Abstract]
Cover [Abstract]
Cover [Abstract]
3.875% senior unsecured notes due 2031
Three Point Eight Seven Five Percent Senior Unsecured Notes Due Two Thousand Thirty One [Member]
Three point eight seven five percent senior unsecured notes due two thousand thirty one.
Intangible assets, net
Net intangible assets
Finite-Lived Intangible Assets, Net
Summary of Maturities of Operating Lease Liability
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Blackrock Inc
Blackrock Inc [Member]
BlackRock Inc.
Concentration Risk Type
Concentration Risk Type [Domain]
Long-term operating lease liabilities
Increase Decrease In Long Term Operating Lease Liabilities
Increase (decrease) in long-term operating lease liabilities.
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Total Compensation Amount
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Total Asia & Australia
Asia And Australia [Member]
Asia and Australia.
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Treasury Stock
Treasury Stock, Common [Member]
Adjustment to Non-PEO NEO Compensation Footnote
Adjustment to Non-PEO NEO Compensation Footnote [Text Block]
Pay vs Performance Disclosure [Line Items]
Present value of lease liabilities
Operating Lease, Liability
Foreign currency translation adjustments, net
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Forgone Recovery due to Disqualification of Tax Benefits, Amount
ACQUISITIONS
Business Combination [Text Block]
Non-Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Entity Shell Company
Entity Shell Company
Recurring subscriptions
Recurring Subscriptions [Member]
Recurring subscriptions.
Other non-current liabilities
Other Liabilities, Noncurrent
Debt Instrument [Table]
Schedule of Long-Term Debt Instruments [Table]
Proceeds from borrowings
Proceeds from Issuance of Debt
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Company Selected Measure Amount
Company Selected Measure Amount
2029
Lessee, Operating Lease, Liability, to be Paid, Year Three
Award Timing MNPI Considered
Award Timing MNPI Considered [Flag]
Other non-current liabilities
Increase (Decrease) in Other Noncurrent Liabilities
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Name
Measure Name
Acquired technology and software
Acquired Technology And Software [Member]
Acquired technology and software.
Other accrued liabilities
Operating Lease, Liability, Current
Schedule of Changes in the Company’s Level 3 Financial Liabilities
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Deferred tax liabilities
Deferred Income Tax Liabilities, Net
Document Fiscal Period Focus
Document Fiscal Period Focus
Foreign currency translation adjustments
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent
Award Timing Method
Award Timing Method [Text Block]
Award Type
Award Type [Axis]
Long-term deferred revenue
Contract with Customer, Liability, Noncurrent
Carrying value
Long-Term Debt
Total assets
Assets
2027
Finite-Lived Intangible Asset, Expected Amortization, Year One
Trading Symbol
Trading Symbol
2030
Lessee, Operating Lease, Liability, to be Paid, Year Four
Geographical
Geographical [Domain]
Entity Address, City or Town
Entity Address, City or Town
Cash flows from operating activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
5.150% senior unsecured notes due 2036
Five Point One Five Zero Percent Senior Unsecured Notes Due Two Thousand Thirty Six [Member]
Five Point One Five Zero Percent Senior Unsecured Notes Due Two Thousand Thirty Six
Weighted average useful life
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life
Concentration Risk Type
Concentration Risk Type [Axis]
Non-PEO NEO Average Compensation Actually Paid Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Increase/(decrease)
Accounts Receivable Increase Decrease
Accounts receivable increase (decrease).
Compensation Actually Paid vs. Other Measure
Compensation Actually Paid vs. Other Measure [Text Block]
Aggregate purchase price
Business Combination, Consideration Transferred
2030
Finite-Lived Intangible Asset, Expected Amortization, Year Four
Entity Emerging Growth Company
Entity Emerging Growth Company
2029
Long-Term Debt, Maturity, Year Three
Dividend declared per common share (in USD per share)
Per Share (in USD per share)
Common Stock, Dividends, Per Share, Declared
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Right of use assets obtained in exchange for new operating lease liabilities
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
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]
Insider Trading Policies and Procedures Not Adopted
Insider Trading Policies and Procedures Not Adopted [Text Block]
Other
Other Europe Middle East And Africa Countries [Member]
Other Europe, Middle East and Africa Countries.
Additions of contingent consideration
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases
Business Combination
Business Combination [Domain]
Maturity of Lease Liabilities
Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
Common stock, shares outstanding (in shares)
Beginning balance (in shares)
Ending balance (in shares)
Common Stock, Shares, Outstanding
Addition to credit loss expense
Accounts Receivable, Credit Loss Expense (Reversal)
PEO
PEO [Member]
Schedule of Disaggregation of Operating Revenue
Disaggregation of Revenue [Table Text Block]
Summary of Activity Related to Shares of Common Stock Issued and Repurchased
Schedule of Common Stock Outstanding Roll Forward [Table Text Block]
Interest income
Investment Income, Interest
Income taxes payable
Accrued Income Taxes, Current
United States
UNITED STATES
Changes in assets and liabilities:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]
Exercise of stock options
Stock Issued During Period, Value, Stock Options Exercised
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]
Schedule of Estimated Amortization Expense for the Remainder of the Year and Succeeding Years
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Retained Earnings
Retained Earnings [Member]
Index
Index Segment [Member]
Index.
Prepaid and other assets
Prepaid Expense and Other Assets, Current
Schedule Of Revenue Recognition [Table]
Schedule Of Revenue Recognition [Table]
Schedule of revenue recognition.
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Restatement Determination Date
Restatement Determination Date
Cash, cash equivalents and restricted cash, beginning of period
Cash, cash equivalents and restricted cash, end of period
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Income Statement [Abstract]
Income Statement [Abstract]
Provision for income taxes
Income Tax Expense (Benefit)
Debt instrument, basis spread on variable rate
Debt Instrument, Basis Spread on Variable Rate
Deferred revenue
Contract with Customer, Liability, Current [Roll Forward]
Contract with Customer, Liability, Current
Preferred stock, shares issued (in shares)
Preferred Stock, Shares Issued
Pension Adjustments Service Cost
Pension Adjustments Service Cost [Member]
Variable rate Revolving Loan Commitments
Variable rate revolving loan
Credit Agreement [Member]
Credit Agreement
Product and Service
Product and Service [Domain]
Discrete tax benefit from legal entity restructuring
Effective Income Tax Rate Reconciliation, Internal Legal Entity Restructuring, Amount
Effective Income Tax Rate Reconciliation, Internal Legal Entity Restructuring, Amount
Customer Concentration Risk
Customer Concentration Risk [Member]
Net income
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Restatement does not require Recovery
Restatement Does Not Require Recovery [Text Block]
Schedule Of Business Acquisitions By Acquisition [Table]
Business Combination [Table]
Revenue from Contract with Customer, Product and Service Benchmark
Revenue from Contract with Customer, Product and Service Benchmark [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Amortization of right of use assets
Operating Lease, Right-of-Use Asset, Periodic Reduction
Compensation Actually Paid vs. Company Selected Measure
Compensation Actually Paid vs. Company Selected Measure [Text Block]
2025 Repurchase Program
2025 Repurchase Program [Member]
2025 Repurchase Program
Acquisitions
Goodwill, Acquired During Period
Equity, Class of Treasury Stock [Line Items]
Equity, Class of Treasury Stock [Line Items]
Proceeds from exercise of stock options
Proceeds from Stock Options Exercised
City Area Code
City Area Code
Schedule of Changes in Allowance for Credit Losses
Financing Receivable, Allowance for Credit Loss [Table Text Block]
Business acquisitions, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Award Timing, How MNPI Considered
Award Timing, How MNPI Considered [Text Block]
All Trading Arrangements
All Trading Arrangements [Member]
Equity Awards Adjustments, Footnote
Equity Awards Adjustments, Footnote [Text Block]
Total Shareholder Return Vs Peer Group
Total Shareholder Return Vs Peer Group [Text Block]
Class Of Treasury Stock [Table]
Class of Treasury Stock [Table]
Payments
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements
Schedule of Change in Accounts Receivable and Current Deferred Revenue
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
Cash flows from investing activities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
General and administrative
General and Administrative Expense
Pay vs Performance Disclosure
Pay vs Performance Disclosure [Table]
Net cash provided by operating activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Preferred stock, par value (in USD per share)
Preferred Stock, Par or Stated Value Per Share
Subsequent Event
Subsequent Event [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total lease costs
Lease, Cost
Goodwill
Goodwill, beginning balance
Goodwill, ending balance
Goodwill
Equity Valuation Assumption Difference, Footnote
Equity Valuation Assumption Difference, Footnote [Text Block]
Schedule of Components of Lease Expense (Income), Weighted-Average Remaining Lease Term and Discount Rate, and Other Information Related to the Company's Operating Leases
Lease, Cost [Table Text Block]
PEO Total Compensation Amount
PEO Total Compensation Amount
Long-Term Debt, Type
Long-Term Debt, Type [Axis]
Depreciation and amortization of property, equipment and leasehold improvements
Depreciation
Prepaid and Other Assets
Prepaid Expenses and Other Current Assets [Member]
Prepaid income taxes
Increase (Decrease) in Prepaid Taxes
Remainder of 2026
Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year
Equity Components
Equity Components [Axis]
Sublease income
Sublease Income
Non-Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Thereafter
Lessee Operating Lease Liability Payments Due After Year Four
Lessee, operating lease, liability, payments, due after year four.
Number of reportable segments
Number of Reportable Segments
Maturity Date
Debt Instrument, Maturity Date
Supplemental disclosure of cash flow information:
Supplemental Cash Flow Information [Abstract]
Other Performance Measure, Amount
Other Performance Measure, Amount
Entity Address, State or Province
Entity Address, State or Province
Dividends declared
Dividends
Total current liabilities
Liabilities, Current
Senior Unsecured Notes
Senior Unsecured Notes [Member]
Senior unsecured notes.
Individual:
Individual [Axis]
Accounting Changes and Error Corrections [Abstract]
Accounting Changes and Error Corrections [Abstract]
Payment of dividends
Payments of Ordinary Dividends, Common Stock
Additional paid in capital
Additional Paid in Capital, Common Stock
Net cash used in investing activities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Remaining performance obligations, expected timing of satisfaction, period
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
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]
First interest payment date
Debt Instruments First Interest Payment Date
Debt instruments first interest payment date.
Cash paid for interest
Interest Paid, Excluding Capitalized Interest, Operating Activity
Document Fiscal Year Focus
Document Fiscal Year Focus
Basis of Presentation
Basis of Accounting, Policy [Policy Text Block]
Fair value recurring basis unobservable input reconciliation liability gain loss statement of income extensible list not disclosed flag [Extensible Enumeration]
Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag
Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag
Right of use assets
Operating Lease, Right-of-Use Asset
Forgone Recovery, Explanation of Impracticability
Forgone Recovery, Explanation of Impracticability [Text Block]
Effective tax rate (as percent)
Effective Income Tax Rate Reconciliation, Percent
Entity Interactive Data Current
Entity Interactive Data Current
All Other - Private Assets
Other Operating Segment [Member]
Operating lease expenses
Operating Lease, Cost
Capitalized software development costs
Payments for Software
Equity [Abstract]
Equity [Abstract]
SEGMENT INFORMATION
Segment Reporting Disclosure [Text Block]
Schedule Of Goodwill [Table]
Goodwill [Table]
Disaggregation Of Revenue [Table]
Disaggregation of Revenue [Table]
Schedule Of Acquired Finite Lived Intangible Asset By Major Class [Table]
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Trademarks
Trademarks [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
Fair value of contingent consideration
Business Combination, Contingent Consideration, Liability
Amortization of intangible assets
Total amortization of intangible assets expense
Amortization of Intangible Assets
Deferred tax assets
Deferred Income Tax Assets, Net
Depreciation and amortization of property, equipment and leasehold improvements
Depreciation, Depletion and Amortization
Other non-current assets
Other Assets, Noncurrent
Customer
Customer [Domain]
Entity Central Index Key
Entity Central Index Key
PEO Name
PEO Name
Schedule Of Revenues From External Customers And Long Lived Assets [Table]
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Revenue from Contract with Customer, Segment Benchmark
Revenue from Contract with Customer, Segment Benchmark [Member]
Schedule of Maturities of Long-Term Debt
Schedule of Maturities of Long-Term Debt [Table Text Block]
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]
Outstanding Aggregate Erroneous Compensation Amount
Outstanding Aggregate Erroneous Compensation Amount
Revolving Credit Facility
Revolving Credit Facility [Member]
Beginning balance
Ending Balance
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value
Contingent consideration liability noncurrent
Business Combination, Contingent Consideration, Liability, Noncurrent
Arrangement Duration
Trading Arrangement Duration
Schedule Of Segment Reporting Information By Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Deferred revenue
Opening
Closing
Contract with Customer, Liability, Current
Segments
Segments [Axis]
Prepaid and other assets
Increase (Decrease) in Prepaid Expense and Other Assets
Exercise Price
Award Exercise Price
Entity Filer Category
Entity Filer Category
Local Phone Number
Local Phone Number
Additional 402(v) Disclosure
Additional 402(v) Disclosure [Text Block]
Subsequent Event Type
Subsequent Event Type [Axis]
Contingent consideration liability current
Business Combination, Contingent Consideration, Liability, Current
ASSETS
Assets [Abstract]
Long-term debt
Long-Term Debt, Excluding Current Maturities
Credit Facility [Axis]
Credit Facility [Axis]
Underlying Security Market Price Change
Underlying Security Market Price Change, Percent
Statement of Financial Position Location, Balance
Statement of Financial Position Location, Balance [Axis]
2029
Finite-Lived Intangible Asset, Expected Amortization, Year Three
Debt Instrument
Debt Instrument [Axis]
Business Combination [Line Items]
Business Combination [Line Items]
Credit Facility [Domain]
Credit Facility [Domain]
Gross intangible assets
Finite-Lived Intangible Assets, Gross
Shareholders’ equity (deficit):
Equity, Attributable to Parent [Abstract]
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]
Entity Address, Address Line One
Entity Address, Address Line One
Entity Address, Address Line Two
Entity Address, Address Line Two
Common stock repurchased and held in treasury
Dollar Value of Shares Repurchased
Treasury Stock, Value, Acquired, Cost Method
Research and development
Research and Development Expense
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent [Member]
Debt instrument interest rate
Debt Instrument, Interest Rate, Stated Percentage
Accounts receivable, allowance for credit loss, current
Balance at beginning of year
Balance at ending of year
Accounts Receivable, Allowance for Credit Loss, Current
Long-term operating lease liabilities
Operating Lease, Liability, Noncurrent
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]
Total Americas
Americas [Member]
Fair Value as of Grant Date
Award Grant Date Fair Value
Accounts receivable (net of allowances of $7.1 and $6.4 at March 31, 2026 and December 31, 2025, respectively)
Opening
Closing
Accounts Receivable, after Allowance for Credit Loss
Entity Registrant Name
Entity Registrant Name
Other non-current assets
Increase (Decrease) in Other Noncurrent Assets
Stock Price or TSR Estimation Method
Stock Price or TSR Estimation Method [Text Block]
Income tax effect
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent
Schedule of Senior Unsecured Notes
Schedule of Long-Term Debt Instruments [Table Text Block]
Vantager And Compass
Vantager And Compass [Member]
Vantager And Compass
Total operating expenses
Costs and Expenses
Document Quarterly Report
Document Quarterly Report
Deferred taxes
Deferred Income Taxes and Tax Credits
Changed Peer Group, Footnote
Changed Peer Group, Footnote [Text Block]
Number of operating segments
Number of Operating Segments
2028
Lessee, Operating Lease, Liability, to be Paid, Year Two
Adjustment To PEO Compensation, Footnote
Adjustment To PEO Compensation, Footnote [Text Block]
Title
Trading Arrangement, Individual Title
Peer Group Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
Thereafter
Long-Term Debt, Maturity, After Year Four
Long-Term Debt, Maturity, After Year Four
Schedule of Gross Carrying and Accumulated Amortization Amounts Related to Company's Intangible Assets
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Restatement Determination Date:
Restatement Determination Date [Axis]
Non-PEO NEO
Non-PEO NEO [Member]
Name
Trading Arrangement, Individual Name
All Award Types
Award Type [Domain]
2027
Lessee, Operating Lease, Liability, to be Paid, Year One
Equity Awards Adjustments
Equity Awards Adjustments [Member]
Other adjustments
Other Noncash Income (Expense)
Pension Benefits Adjustments, Footnote
Pension Benefits Adjustments, Footnote [Text Block]
Disaggregation Of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Compensation Amount
Outstanding Recovery Compensation Amount
Schedule of Operating Revenues by Geographic Area
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
Debt Instrument, Name
Debt Instrument, Name [Domain]
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
Recovery of Erroneously Awarded Compensation Disclosure [Line Items]
Revenue recognized during period included in deferred revenue
Contract with Customer, Liability, Revenue Recognized
Accrued compensation and related benefits
Increase (Decrease) in Employee Related Liabilities
3.625% senior unsecured notes due 2031
Three Point Six Two Five Percent Senior Unsecured Notes Due Two Thousand Thirty One [Member]
3.625% Senior Unsecured Notes Due 2031 [Member].
Share Repurchase Program
Share Repurchase Program [Axis]
MNPI Disclosure Timed for Compensation Value
MNPI Disclosure Timed for Compensation Value [Flag]
Name
Awards Close in Time to MNPI Disclosures, Individual Name
Non-recurring
Non Recurring [Member]
Non-recurring.
Aggregate Erroneous Compensation Not Yet Determined
Aggregate Erroneous Compensation Not Yet Determined [Text Block]
Adjusted EBITDA expenses
Adjusted EBITDA Expense
Adjusted EBITDA Expense
Compensation payable in common stock
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Selling and marketing
Selling and Marketing Expense
2027
Long-Term Debt, Maturity, Year One
Segments
Segments [Domain]
Total EMEA
EMEA [Member]
Schedule Of Introduction And Basis Of Presentation [Table]
Schedule Of Introduction And Basis Of Presentation [Table]
Schedule Of Introduction And Basis Of Presentation [Table]
Aggregate Pension Adjustments Service Cost
Aggregate Pension Adjustments Service Cost [Member]
Schedule of Remaining Performance Obligations
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
Statement of Financial Position Location, Balance
Statement of Financial Position Location, Balance [Domain]
Finite-Lived Intangible Assets by Major Class
Finite-Lived Intangible Assets by Major Class [Axis]
Excise tax percentage
Stock Repurchase Program, Excise Tax Percentage
Stock Repurchase Program, Excise Tax Percentage
Company Selected Measure Name
Company Selected Measure Name
Common stock issued to Directors and (held in)/released from treasury
Treasury Stock Value Issued To Directors
Value of common stock issued, but undelivered, to directors. The timing of the delivery of the shares has been deferred until a future date.
Senior Notes
Senior Notes [Member]
Schedule of Amortization Expense Related to Intangible Assets by Category
Finite-Lived Intangible Assets Amortization Expense [Table Text Block]
DEBT
Debt Disclosure [Text Block]
Preferred stock (par value $0.01; 100.0 shares authorized; no shares issued)
Preferred Stock, Value, Issued
Aggregate Available
Trading Arrangement, Securities Aggregate Available Amount
Accounts payable
Accounts Payable, Current
Operating cash flows used for operating leases
Operating Lease, Payments
Stock Appreciation Rights (SARs)
Stock Appreciation Rights (SARs) [Member]
All Executive Categories
All Executive Categories [Member]
Common stock (par value $0.01; 750.0 common shares authorized; 134.4 and 134.4 common shares issued and 72.9 and 73.6 common shares outstanding at March 31, 2026 and December 31, 2025, respectively)
Common Stock, Value, Issued
Goodwill [Roll Forward]
Goodwill [Roll Forward]
Open Market Purchases of Common Stock
Open Market Purchases Of Common Stock [Member]
Open market purchases of common stock.
Diluted (in USD per share)
Diluted weighted average common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Commitments and Contingencies (see Note 7)
Commitments and Contingencies
Non-GAAP Measure Description
Non-GAAP Measure Description [Text Block]
Intangible assets
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived
Business Combination
Business Combination [Axis]
Entity Small Business
Entity Small Business
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Thereafter
Finite Lived Intangible Assets Amortization Expense After Year Four
Finite-lived intangible assets, amortization expense, after year four.
Document Transition Report
Document Transition Report
4.000% senior unsecured notes due 2029
Four Point Zero Zero Zero Percent Senior Unsecured Notes Due Two Thousand Twenty Nine [Member]
Four point zero zero zero percent senior unsecured notes due two thousand twenty nine.
RECENT ACCOUNTING PRONOUNCEMENTS
Accounting Standards Update and Change in Accounting Principle [Text Block]
Long-Term Debt
Long-Term Debt [Member]
Underlying Securities
Award Underlying Securities Amount
Income tax effect
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent
Equity Component
Equity Component [Domain]
Document Period End Date
Document Period End Date
PEO Actually Paid Compensation Amount
PEO Actually Paid Compensation Amount
Introduction And Basis Of Presentation [Line Items]
Introduction And Basis Of Presentation [Line Items]
Introduction and basis of presentation.
INCOME TAXES
Income Tax Disclosure [Text Block]
United Kingdom
UNITED KINGDOM
Payment of contingent consideration and deferred purchase price from acquisitions
Payment for Contingent Consideration Liability, Financing Activities
Awards Close in Time to MNPI Disclosures, Table
Awards Close in Time to MNPI Disclosures [Table Text Block]
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Abstract]
Short-term lease costs
Short-Term Lease, Cost
Fair value
Debt Instrument, Fair Value Disclosure
Average Price Paid Per Share (USD per Share)
Shares Acquired, Average Cost Per Share
Document Type
Document Type
EARNINGS PER COMMON SHARE
Earnings Per Share [Text Block]
Name
Outstanding Recovery, Individual Name
Product and Service
Product and Service [Axis]
Variable lease costs
Variable Lease, Cost
Operating revenues
Operating revenues
Revenue from Contract with Customer, Excluding Assessed Tax
All Individuals
All Individuals [Member]
3.625% senior unsecured notes due 2030
Three Point Six Two Five Percent Senior Unsecured Notes Due Two Thousand Thirty [Member]
Three point six two five percent senior unsecured notes due two thousand thirty.
Long-Term Debt, Type
Long-Term Debt, Type [Domain]
Capital expenditures
Payments to Acquire Property, Plant, and Equipment
Name
Forgone Recovery, Individual Name
Total current assets
Assets, Current
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]
Repurchase program authorizing the purchase of shares
Share Repurchase Program, Authorized, Amount
Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Amount
Foreign exchange translation adjustment
Goodwill, Foreign Currency Translation, Gain (Loss)
Peer Group Issuers, Footnote
Peer Group Issuers, Footnote [Text Block]
Erroneous Compensation Analysis
Erroneous Compensation Analysis [Text Block]
Share Repurchase Program
Share Repurchase Program [Domain]
Schedule Of Finite Lived Intangible Assets [Table]
Intangible Asset, Finite-Lived [Table]
Other comprehensive (loss) income, net of tax
Other comprehensive income (loss), net of tax
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Current liabilities:
Liabilities, Current [Abstract]
Geographical
Geographical [Axis]
Other
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Rule 10b5-1 Arrangement Terminated
Rule 10b5-1 Arrangement Terminated [Flag]
Pension and other post-retirement adjustments, net
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent
Sustainability and Climate
Sustainability And Climate Segment [Member]
Sustainability And Climate Segment
Diluted (in USD per share)
Earnings Per Share, Diluted
Common Stock Outstanding [Line Items]
Common Stock Outstanding [Line Items]
Common stock outstanding.
Other accrued liabilities
Increase (Decrease) in Other Accrued Liabilities
Erroneously Awarded Compensation Recovery
Erroneously Awarded Compensation Recovery [Table]
Concentration Risk Benchmark
Concentration Risk Benchmark [Domain]
Title of 12(b) Security
Title of 12(b) Security
Shares withheld for tax withholding and exercises
Share-Based Payment Arrangement, Decrease For Tax Withholding Obligation And Exercises
Share-Based Payment Arrangement, Decrease For Tax Withholding Obligation And Exercises
Common shares held (in shares)
Beginning balance (in shares)
Ending balance (in shares)
Treasury Stock, Common, Shares
Earnings per share:
Earnings Per Share [Abstract]
Other expense (income), net
Other expense (income), net
Nonoperating Income (Expense)
Schedule of Interest Payments Due Attributable to Outstanding indebtedness
Interest Income and Interest Expense Disclosure [Table Text Block]
Deferred revenue
Increase (Decrease) in Contract with Customer, Liability
Supplemental disclosure of non-cash investing activities
Supplemental Disclosures Of Non Cash Investing Activities [Abstract]
Supplemental disclosures of non cash investing activities.
Less: Interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Total Number of Shares Repurchased (in shares)
Shares repurchased under stock repurchase programs (in shares)
Treasury Stock, Shares, Acquired
Cash paid for income taxes, net of refunds received
Income Taxes Paid, Net
Other
Other America Countries [Member]
Other America Countries.
2028
Finite-Lived Intangible Asset, Expected Amortization, Year Two
Award Timing Disclosures [Line Items]
Principal amount outstanding
Total debt
Long-Term Debt, Gross
Earnings per common share:
Net Income Loss Per Share [Abstract]
Net Income Loss Per Share
Accrued compensation and related benefits
Employee-related Liabilities, Current
Total lease payments
Lessee, Operating Lease, Liability, to be Paid
SHAREHOLDERS' EQUITY (DEFICIT)
Equity [Text Block]
Proprietary data
Proprietary Databases And Systems [Member]
Proprietary databases and systems.
Net income
Net income
Net income
Net Income (Loss) Attributable to Parent
Subsequent Event [Table]
Subsequent Event [Table]
Expiration Date
Trading Arrangement Expiration Date
Other accrued liabilities
Other Accrued Liabilities, Current
Accounts receivable, net of allowances
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Property, equipment and leasehold improvements, net
Property, Plant and Equipment, Net
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Preferred stock, shares authorized (in shares)
Preferred Stock, Shares Authorized
Repurchase of common stock held in treasury
Payments for Repurchase of Common Stock
Adoption Date
Trading Arrangement Adoption Date
Base Rate
Base Rate [Member]
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Net Income [Text Block]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Entity Current Reporting Status
Entity Current Reporting Status
Asset-based fees
Asset Based Fees [Member]
Asset-based fees.
Customer
Customer [Axis]
Awards Close in Time to MNPI Disclosures
Awards Close in Time to MNPI Disclosures [Table]
Customer relationships
Customer Relationships [Member]
Operating income
Operating Income (Loss)
Line of Credit
Line of Credit [Member]
Japan
JAPAN
Retained earnings
Retained Earnings (Accumulated Deficit)
Interest payment frequency
Debt Instrument, Frequency of Periodic Payment
Schedule of Company's Common Stock Repurchases Made on Open Market
Class of Treasury Stock [Table Text Block]
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
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]
Executive Category:
Executive Category [Axis]
Repayment of borrowings
Repayments of Debt
Movement In Equity Shares [Roll Forward]
Movement In Equity Shares [Roll Forward]
Movement In Equity Shares
Current Fiscal Year End Date
Current Fiscal Year End Date
Subsequent Event Type
Subsequent Event Type [Domain]
Finite-Lived Intangible Assets, Major Class Name
Finite-Lived Intangible Assets, Major Class Name [Domain]
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]
Statement [Table]
Statement [Table]
Other expense (income)
Other Nonoperating Income (Expense)
Effect of exchange rate changes
Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Cash flows from financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Equity Awards Adjustments, Excluding Value Reported in Compensation Table
Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member]
Variable Rate [Domain]
Variable Rate [Domain]
INTRODUCTION AND BASIS OF PRESENTATION
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Weighted average shares outstanding:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
All Adjustments to Compensation
All Adjustments to Compensation [Member]
Amendment Flag
Amendment Flag
2028
Long-Term Debt, Maturity, Year Two
Amortization expense of internally developed capitalized software
Internally developed capitalized software
Software Development [Member]
Treasury shares, at cost (61.5 and 60.8 common shares held at March 31, 2026 and December 31, 2025, respectively)
Treasury Stock, Common, Value
LEASES
Lessee, Operating Leases [Text Block]
Termination Date
Trading Arrangement Termination Date
Net cash (used in) provided by financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Adopted [Flag]
Measure:
Measure [Axis]
Weighted-average discount rate
Operating Lease, Weighted Average Discount Rate, Percent
Basic (in USD per share)
Basic weighted average common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
Other
Other Asia And Australia Countries [Member]
Other Asia and Australia Countries.
Common Stock Outstanding
Common Stock Outstanding [Member]
Common stock outstanding.
Stock repurchase program, remaining authorized repurchase amount
Share Repurchase Program, Remaining Authorized, Amount
Cost of revenues (exclusive of depreciation and amortization)
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization
Schedule of Computation of Basic and Diluted EPS
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Subsequent Events [Abstract]
Subsequent Events [Abstract]
Segment Reporting [Abstract]
Segment Reporting [Abstract]
Pay vs Performance Disclosure, Table
Pay vs Performance [Table Text Block]
Debt Disclosure [Abstract]
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Amortization of debt origination fees
Amortization of Debt Issuance Costs
Entity Tax Identification Number
Entity Tax Identification Number
Operating expenses:
Costs and Expenses [Abstract]
Write-offs, net of recoveries
Accounts Receivable, Allowance for Credit Loss, Writeoff
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Expense of Enforcement, Amount
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock, par value (in USD per share)
Common Stock, Par or Stated Value Per Share
Common stock, shares issued (in shares)
Beginning balance (in shares)
Ending balance (in shares)
Common Stock, Shares, Issued
Weighted-average remaining lease term (years)
Operating Lease, Weighted Average Remaining Lease Term
2030
Long-Term Debt, Maturity, Year Four
GOODWILL AND INTANGIBLE ASSETS, NET
Goodwill and Intangible Assets Disclosure [Text Block]
Common Stock Outstanding [Table]
Common Stock Outstanding [Table]
Common Stock Outstanding [Table]
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Schedule of Change to Company's Goodwill
Schedule of Goodwill [Table Text Block]
Interest expense
Interest Expense, Nonoperating
Trading Arrangement:
Trading Arrangement [Axis]
Income taxes payable
Increase (Decrease) in Income Taxes Payable
Total Shareholder Return Amount
Total Shareholder Return Amount
Change in fair value
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings
SUBSEQUENT EVENTS
Subsequent Events [Text Block]
Insider Trading Arrangements [Line Items]
Security Exchange Name
Security Exchange Name
Remainder of 2026
Long-Term Debt, Maturity, Remainder of Fiscal Year
Total liabilities
Liabilities
Property, equipment and leasehold improvements in other accrued liabilities
Capital Expenditures Incurred but Not yet Paid
Line of credit facility, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Pension Adjustments Prior Service Cost
Pension Adjustments Prior Service Cost [Member]
Material Terms of Trading Arrangement
Material Terms of Trading Arrangement [Text Block]
Revenue Recognition [Line Items]
Revenue Recognition [Line Items]
Revenue recognition.
Common stock issued
Stock Issued During Period, Value, New Issues
Statement [Line Items]
Statement [Line Items]
Variable Rate [Axis]
Variable Rate [Axis]
Rule 10b5-1 Arrangement Adopted
Rule 10b5-1 Arrangement Adopted [Flag]
Cash and cash equivalents (includes restricted cash of $3.6 and $3.7 at March 31, 2026 and December 31, 2025, respectively)
Cash and Cash Equivalent
Subsequent Event [Line Items]
Subsequent Event [Line Items]
Common Stock
Common Stock [Member]
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Non-NEOs
Non-NEOs [Member]
Net (decrease) increase 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
Effect of dilutive securities (in shares)
Weighted Average Number of Shares Outstanding, Diluted, Adjustment
Pension and other post-retirement adjustments
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent