75000 - Document - Document and Entity Information
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75010 - Statement - Condensed Consolidated Balance Sheets
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75020 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)
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75030 - Statement - Condensed Consolidated Statements of Income (unaudited)
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75040 - Statement - Condensed Consolidated Statements of Comprehensive Income (unaudited)
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75050 - Statement - Condensed Consolidated Statements of Stockholders' Equity
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75060 - Statement - Condensed Consolidated Statements of Cash Flows
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995455 - Disclosure - Basis of Presentation
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995465 - Disclosure - Recent Accounting Pronouncements
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995475 - Disclosure - Revenues
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995485 - Disclosure - Business Acquisitions
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995495 - Disclosure - Property and Equipment
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995505 - Disclosure - Intangible Assets and Goodwill
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995515 - Disclosure - Debt
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995525 - Disclosure - Fair Value Measurements and Financial Risk
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995535 - Disclosure - Stockholders' Equity
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995545 - Disclosure - Stock-Based Compensation
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995555 - Disclosure - Earnings Per Share
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995565 - Disclosure - Income Taxes
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995575 - Disclosure - Commitments and Contingencies
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995585 - Disclosure - Accounts Payable and Other Current Liabilities
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995595 - Disclosure - Segment Information
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995605 - Disclosure - Related Party Transactions
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995615 - Disclosure - Subsequent Events
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995625 - Disclosure - Basis of Presentation (Policies)
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995635 - Disclosure - Revenues (Tables)
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995645 - Disclosure - Business Acquisitions (Tables)
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995655 - Disclosure - Property and Equipment (Tables)
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995665 - Disclosure - Intangible Assets and Goodwill (Tables)
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995675 - Disclosure - Debt (Tables)
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995685 - Disclosure - Fair Value Measurements and Financial Risk (Tables)
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995695 - Disclosure - Stockholders' Equity (Tables)
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995705 - Disclosure - Stock-Based Compensation (Tables)
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995715 - Disclosure - Earnings Per Share (Tables)
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995725 - Disclosure - Accounts Payable and Other Current Liabilities (Tables)
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995735 - Disclosure - Segment Information (Tables)
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995745 - Disclosure - Recent Accounting Pronouncements - Additional Information (Detail)
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995755 - Disclosure - Revenues - Additional Information (Detail)
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995765 - Disclosure - Revenues - Additional Information (Detail 1)
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995765 - Disclosure - Revenues - Additional Information (Detail 1) [Default]
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995775 - Disclosure - Revenues - Summary of Revenues Disaggregated (Detail)
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995785 - Disclosure - Business Acquisitions - Additional Information (Detail)
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995795 - Disclosure - Business Acquisitions - Summary of Purchase Price Allocation and Measurement Period Adjustment (Detail)
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995805 - Disclosure - Business Acquisitions - Schedule of Supplemental Pro-Forma Information (Detail)
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995815 - Disclosure - Property and Equipment - Summary of Property and Equipment, Net (Detail)
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995825 - Disclosure - Property and Equipment - Additional Information (Detail)
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995835 - Disclosure - Intangible Assets and Goodwill - Summary of Intangible Assets (Detail)
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995845 - Disclosure - Intangible Assets and Goodwill - Additional Information (Detail)
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995855 - Disclosure - Intangible Assets and Goodwill - Schedule of Changes in Carrying Amount of Goodwill for Each Reportable Segment (Detail)
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995865 - Disclosure - Intangible Assets and Goodwill - Schedule of Changes in Carrying Amount of Goodwill for Each Reportable Segment (Parenthetical) (Detail)
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995875 - Disclosure - Debt - Summary of Long-Term Debt (Detail)
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995885 - Disclosure - Debt - Summary of Long-Term Debt (Parenthetical) (Detail)
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995895 - Disclosure - Debt - Second Amended and Restated Senior Secured Credit Facilities - Additional Information (Detail)
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995905 - Disclosure - Debt - Guarantees, Collateral, Covenants and Events of Default - Additional Information (Detail)
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995915 - Disclosure - Debt - Previous Senior Secured Credit Facilities - Additional Information (Detail)
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995925 - Disclosure - Debt - Summary of Interest Expense (Detail)
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995935 - Disclosure - Debt - Interest Expense - Additional Information (Details)
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995945 - Disclosure - Fair Value Measurements and Financial Risk - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)
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995955 - Disclosure - Fair Value Measurements and Financial Risk - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Parenthetical) (Detail)
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995965 - Disclosure - Fair Value Measurements and Financial Risk - Additional Information (Detail)
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995975 - Disclosure - Fair Value Measurements and Financial Risk - Summary of Changes in Fair Value of Contingent Consideration Liabilities (Details)
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995985 - Disclosure - Stockholders' Equity - Additional Information (Detail)
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995995 - Disclosure - Stockholders' Equity - Summary of Dividend activity (Details)
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996005 - Disclosure - Stockholders' Equity - Summary of the Changes in Accumulated Balances of Other Comprehensive Income (Loss) (Details)
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996015 - Disclosure - Stock-Based Compensation - Additional Information (Detail)
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996025 - Disclosure - Stock-Based Compensation - Schedule of Stock Option Activity (Detail)
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996035 - Disclosure - Stock-Based Compensation - Schedule of Restricted Stock Units Activity (Detail)
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996045 - Disclosure - Stock-Based Compensation - Schedule of Assumptions Used in Determining Fair Value Performance-based Market Condition Share Awards Outstanding (Detail)
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996055 - Disclosure - Earnings Per Share - Additional Information (Detail)
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996065 - Disclosure - Earnings Per Share - Computation of Basic and Diluted Earnings Per Common Share (Detail)
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996075 - Disclosure - Income Taxes - Additional Information (Detail)
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996085 - Disclosure - Accounts Payable and Other Current Liabilities - Schedule of Accounts Payable and Other Current Liabilities (Detail)
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996095 - Disclosure - Segment Information - Additional Information (Detail)
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996105 - Disclosure - Segment Information - Reconciliation of Reportable Segment Revenues and Adjusted EBITDA to Net Income Before Income Taxes (Detail)
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996115 - Disclosure - Segment Information - Reconciliation of Reportable Segment Revenues and Adjusted EBITDA to Net Income Before Income Taxes (Parenthetical) (Detail)
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996125 - Disclosure - Segment Information - Schedule of Reportable Segment Revenues Cost of Revenues and Selling General and Administrative Expenses (Details)
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996135 - Disclosure - Segment Information - Schedule of Revenues from Transactions Countries (Details)
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996145 - Disclosure - Related Party Transactions - Additional Information (Detail)
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996155 - Disclosure - Subsequent Events - Additional Information (Detail)
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Cost of revenue net of cancellation adjustments.
Cost Of Revenue Net Of Cancellation Adjustments
Cost of revenues
Cost of revenues
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value per Share, Vested
Business Combination, Acquisition-Related Cost, Expense
Acquisition costs incurred
Acquisition-related transaction costs
Trade Shows [Member]
Trade shows.
Trade Shows [Member]
Contingent consideration outstanding.
Contingent Consideration Outstanding
Contingent consideration
Segments
Segments [Domain]
Concentration Risk Type [Axis]
Concentration Risk Type
Increase decrease in cancelled event liabilities.
Increase Decrease In Cancelled Event Liabilities
Cancelled event liabilities
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Statement of Financial Position Location, Balance [Domain]
Balance Sheet Location
Supplemental disclosure of non-cash investing and financing activities:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Business combination increase (decrease) in fair value of contingent consideration liability
Remeasurement of contingent consideration
Fair value remeasurement adjustments
Expected to be settled in 2023.
Expected To Be Settled In2023 [Member]
Expected to be Settled in 2023 [Member]
Plan Name [Axis]
Plan Name
Equity [Abstract]
Entity Current Reporting Status
Entity Current Reporting Status
Dividend payable per share
Annual cash dividend per share
Dividends Payable, Amount Per Share
Fair Value, Inputs, Level 2 [Member]
Level 2 [Member]
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingencies
Common Stock, Shares Authorized
Common stock, shares authorized
Temporary Equity, Par or Stated Value Per Share
Temporary equity, par value
Product and Service
Product and Service [Axis]
Document Fiscal Period Focus
Document Fiscal Period Focus
Other Noncurrent Liabilities [Member]
Other Noncurrent Liabilities [Member]
Debt Instrument, Interest Rate, Stated Percentage
Actual interest rate
Revenue from Contract with Customer [Abstract]
Revenues
Entity Shell Company
Entity Shell Company
Temporary equity, shares outstanding
Temporary Equity, Balances, shares
Temporary Equity, Balances, shares
Temporary Equity, Shares Outstanding
Working capital adjustment receivable from seller
Working Capital Adjustment Receivable From Seller
Working capital adjustment receivable from seller.
Segment Reporting, Policy [Policy Text Block]
Segment Reporting
Cash and Cash Equivalent
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value, Total
Revenue from contract with customer.
Revenue From Contract With Customer [Line Items]
Revenue From Contract With Customer [Line Items]
Indefinite- lived trade names.
Indefinite- lived Trade Names [Member]
Indefinite-lived Trade Names [Member]
Common Stock, Shares, Issued
Common stock, shares issued
Coronavirus Disease 2019.
Coronavirus Disease Two Thousand Nineteen [Member]
COVID-19 [Member]
Asset Class [Domain]
Asset Class
As Converted Common Stock [Member]
As Converted Common Stock [Member]
As Converted Common Stock.
Statement [Table]
Statement [Table]
Implementation fees and professional services.
Implementation Fees And Professional Services [Member]
Implementation Fees and Professional Services [Member]
Statement [Line Items]
Statement [Line Items]
Business Combination [Domain]
Business Acquisition, Acquiree
Revenue from Contract with Customer [Policy Text Block]
Revenue Recognition and Deferred Revenue
Entity Filer Category
Entity Filer Category
Reclassification, Comparability Adjustment [Policy Text Block]
Reclassifications
Liabilities and Equity
Total liabilities, redeemable convertible preferred stock and stockholders’ deficit
Total liabilities and stockholders' equity
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Payables and Accruals [Abstract]
Statement of Partners' Capital [Abstract]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Weighted-Average Exercise Price per Option, Exercisable
Connections [Member]
Connections.
Connections [Member]
Long-Lived Tangible Asset [Axis]
Long-Lived Tangible Asset
Funded through non-cash rollover from existing lenders.
Funded Through Non-cash Rollover from Existing Lenders [Member]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent, Total
Foreign currency translation adjustments
Revenue remaining performance obligation expected timing of renewal period.
Revenue Remaining Performance Obligation Expected Timing Of Renewal Period
Revenue recognition of remaining performance obligations expected renewal period
Trade Names [Member]
Trade Names [Member]
Deferred tax benefit for stock-based compensation.
Deferred Tax Benefit For Stock Based Compensation
Deferred tax benefit for stock-based compensation
Cash and Cash Equivalents, Fair Value Disclosure
Cash and cash equivalents
Percentage of amount outstanding exceeds commitment for testing of financial covenant.
Percentage Of Amount Outstanding Exceeds Commitment For Testing Of Financial Covenant
Percentage of amount outstanding exceeds total commitment for testing of financial covenant
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
U.S. Corporate federal income tax rate
Subsequent Event [Line Items]
Goodwill
Goodwill, net
Goodwill
Goodwill, balance
Goodwill, balance
Goodwill, Total
Effective Income Tax Rate Reconciliation, Percent
Effective income tax rates
Effective Income Tax Rate Reconciliation, Percent, Total
Stock Options [Member]
Investment Income, Interest
Interest income
Geographical [Domain]
Payments to Acquire Intangible Assets
Purchases of intangible assets
Stand by letter of credit amount outstanding.
Stand By Letter Of Credit Amount Outstanding
Stand-by letters of credit
Assets, Noncurrent [Abstract]
Noncurrent assets
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]
Reconciliation of Reportable Segment Revenues and Adjusted EBITDA to Net Income Before Income Taxes
Loss on extinguishment of debt.
Loss on Extinguishment of Debt [Member]
Gain (Loss) on Disposition of Assets for Financial Service Operations, Total
Gain (Loss) on Disposition of Assets for Financial Service Operations
Loss on disposal of fixed assets
Second amended and restated senior secured credit facilities
Second Amended And Restated Senior Secured Credit Facilities [Member]
Second amended and restated senior secured credit facilities.
Merger Cash Consideration Right to Receive Common Stock per Share
Merger cash consideration right to receive common stock per share.
Merger cash consideration right to receive common stock per share
Unamortized deferred financing fees
Debt Issuance Costs, Net, Total
Debt Issuance Cost
Debt issuance costs incurred
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation
Tax withheld related to RSU vesting
Tax withheld related to RSU vesting
Conversion of Stock, Amount Converted
Conversion of redeemable convertible preferred stock to common stock
Property, Plant and Equipment [Line Items]
Property Plant And Equipment [Line Items]
Share Repurchase Program [Axis]
Share Repurchase Program
Unusual or Infrequent Item, or Both [Domain]
Unusual or Infrequent Item, or Both
Rule 10b5-1 Arr Modified [Flag]
Rule 10b5-1 arr modified flag.
Rule 10b5-1 Arr Modified
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross
Number of Options, Granted
Preferred stock, participation rights rights on if-converted basis.
Participation rights on if-converted basis
Preferred Stock Participation Rights Rights On If Converted Basis
Disaggregation of Revenue [Table]
Disaggregation Of Revenue [Table]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Computation of Basic and Diluted Earnings Per Common Share
Trademarks and Trade Names [Member]
Trade Names [Member]
Dividends Payable
Dividend payable
Basic loss per share
Earnings Per Share, Basic
Earnings Per Share, Basic, Total
Basic income per share
Disaggregation of Revenue [Table Text Block]
Summary of Revenues Disaggregated
Repayments of Long-Term Debt
Repayments of Long-Term Debt, Total
Repayment of principal on Second Amended and Restated Term Loan Facility
One-Month Term SOFR [Member]
One Month Term Secured Overnight Financing Rate SOFR [Member]
One month term secured overnight financing rate SOFR.
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Number of Options Outstanding, Beginning Balance
Number of Options Outstanding, Ending Balance
Second Amended and Restated Senior Secured Credit Facilities Additional Interest Rate Decrease [Member]
Second Amended And Restated Senior Secured Credit Facilities Additional Interest Rate Decrease [Member]
Second Amended And Restated Senior Secured Credit Facilities Additional Interest Rate Decrease.
Payment for Contingent Consideration Liability, Investing Activities
Payment of contingent consideration liability
Revolving Credit Facility [Member]
Revolving Credit Facility [Member]
Liabilities, Current
Total current liabilities
Total current liabilities
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Adjustments to reconcile net income to net cash provided by operating activities:
Two Thousand Twenty Five London Event Payment [Member]
Two thousand twenty five London event payment.
2025 London Event Payment [Member]
Dividends Payable, Date of Record
Stockholders of record on
Dividends payable, date of record
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Summary of Changes in Fair Value of Contingent Consideration Liabilities
Share Repurchase Program [Domain]
Share Repurchase Program
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent
Other non-current liability
Fees paid for debt issuance
Payments of Debt Issuance Costs
Accounting Standards Update [Axis]
Accounting Standards Update
This is Beyond Ltd [Member]
This is Beyond Ltd.
Equity, Attributable to Parent [Abstract]
Stockholders' equity
Entity Small Business
Entity Small Business
Line of Credit Facility, Commitment Fee Amount
Revolving credit facility interest and commitment fees
Retained Earnings (Accumulated Deficit)
Accumulated deficit
Retained Earnings (Accumulated Deficit), Total
Av Iq Advertising Week Bulletin Lodestone and Hotel Interactive.
Av Iq Advertising Week Bulletin Lodestone and Hotel Interactive [Member]
AV-IQ, Advertising Week, Bulletin, Lodestone and Hotel Interactive [Member]
Number of Options, Forfeited/Expired
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period
All Other Category Adjusted EBITDA
All Other Category Adjusted Earnings Before Interest Taxes Depreciation And Amortization
All other category adjusted earnings before interest taxes depreciation and amortization
Share-Based Payment Arrangement [Text Block]
Stock-Based Compensation
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Payments of Dividends, Total
Payments of Dividends
Cash dividend paid
Debt instrument maturity year.
Debt Instrument Maturity Year
Maturity year
Catastrophic Event [Axis]
Amendment Flag
Amendment Flag
Product and Service [Domain]
Product and Service
O2025Q2 Dividends [Member]
O2025 Q2 Dividends [Member]
O2025 Q2 Dividends.
Liabilities and Equity [Abstract]
Liabilities and Stockholders' Equity (Deficit)
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Net cash provided by operating activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Net cash provided by operating activities
Accounts receivable credits reclassified to cancelled event liabilities.
Accounts Receivable Credits Reclassified To Cancelled Event Liabilities
Accounts receivable credits reclassified to cancelled event liabilities
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description
Common Stock [Member]
Common Stock [Member]
Accounting Standards Update and Change in Accounting Principle [Table]
New Accounting Pronouncements Or Change In Accounting Principle [Table]
Number of operating segments, aggregated into reportable segments.
Number Of Operating Segments Aggregated Into Reportable Segments
Number of operating segments, aggregated into reportable segments
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Weighted-Average Exercise Price per Option, Granted
Lodestone [Member]
Lodestone Events [Member]
Lodestone events.
Lodestone Events [Member]
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Less: Accumulated depreciation
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance
Secured debt
Long-term debt
Secured debt
Trade show and conference events.
Trade Shows And Conference Events [Member]
Trade Show and Conference Events [Member]
Effective interest rate
Debt Instrument, Interest Rate, Effective Percentage
Portion at Fair Value Measurement [Member]
Fair Value Disclosure Item Amounts [Default]
Portion at Fair Value Measurement [Member] [Default]
Entity Address, Address Line One
Entity Address, Address Line One
Change in accounting principle, accounting standards update, immaterial effect
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]
Dividends Payable [Table]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV
Earnings Per Share [Abstract]
Previous Senior Secured Credit Facilities [Member]
Previous senior secured credit facilities.
Previous Senior Secured Credit Facilities
Repayment of Principal on Previous Extended Term Loan Facility
Repayment of Principal on previous extended term loan facility.
Repayment of principal on Previous Extended Term Loan Facility
Temporary Equity, Balances
Temporary Equity, Balances
Temporary Equity, Carrying Amount, Attributable to Parent
7% Series A Redeemable Convertible Participating Preferred stock, $0.01 par value; authorized shares at September 30, 2024 and December 31, 2023: 80,000; zero and 71,403 shares issued and outstanding; aggregate liquidation preference of zero and $492.6 million at September 30, 2024 and December 31, 2023, respectively
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Foreign Currency Translations
Additional step-up percentage
Debt Instrument, Additional Step-Up Percentage
Debt instrument, additional step-up percentage.
Goodwill and Intangible Assets Disclosure [Text Block]
Intangible Assets and Goodwill
Statement of Financial Position Location, Balance [Axis]
Balance Sheet Location
Percentage of quarterly installment on principal outstanding.
Percentage Of Quarterly Installment On Principal Outstanding
Quarterly installment percentage of principal amount outstanding
Operating Lease, Right-of-Use Asset
Right-of-use lease assets
Net income (loss) and comprehensive income (loss) attributable to Emerald Holding, Inc.
Net income loss and comprehensive income loss.
Net income and comprehensive income attributable to Emerald Holding, Inc.
Net (loss) income attributable to Emerald Holding, Inc.
Net loss and comprehensive loss
Business Combination, Contingent Consideration [Line Items]
Document Type
Document Type
Onex Corporation.
Onex Corporation [Member]
Onex Corporation [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Cost of Revenue [Abstract]
Cost of revenues
Collaborative Arrangement and Arrangement Other than Collaborative [Domain]
Entity Central Index Key
Entity Central Index Key
Merger Agreement [Member]
Merger agreement.
Accounts Receivable, Allowance for Credit Loss, Current
Allowance - trade and other receivables, current
Non cash operating lease income expense.
Non Cash Operating Lease Income Expense
Non-cash operating lease expense
Content [Member]
Content [Member]
Content.
Emerald revenue.
Emerald Revenue [Member]
Emerald Revenue [Member]
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
Net increase in cash and cash equivalents
Subsequent Event Type [Domain]
Subsequent Event Type
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Anti-dilutive employee share awards excluded from diluted earnings per share calculation
Common Stock, Par or Stated Value Per Share
Common stock, par value
Money Market Funds, at Carrying Value
Money market mutual funds
Accounting Standards Update [Domain]
Accounting Standards Update
Other marketing services.
Other Marketing Services [Member]
Other Marketing Services [Member]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Other comprehensive income (loss)
Total other comprehensive (loss) income, net of tax:
Net change in accumulated other comprehensive income (loss)
Business Combination, Recognized Asset Acquired, Deferred Tax Asset
Deferred taxes
Schedule of intangible assets excluding goodwill.
Schedule Of Intangible Assets Excluding Goodwill [Table]
Schedule Of Intangible Assets Excluding Goodwill [Table]
Goodwill [Line Items]
Goodwill [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Weighted-Average Remaining Contractual Term, Outstanding Balance
Gain (Loss) on Termination of Lease
Loss on lease abandonment
Contingent consideration liabilities.
Contingent Consideration Liabilities [Member]
Number of Options, Exercised
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period
Number of Options, Exercised
Debt Disclosure [Abstract]
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Foreign Currency Translation Adjustments [Member]
Estimate of Fair Value Measurement [Member]
Estimated Fair Value [Member]
Cost of Sales [Member]
Cost Of Revenues [Member]
Current Fiscal Year End Date
Current Fiscal Year End Date
Schedule of Long-Term Debt Instruments [Table]
Debt Instrument [Table]
AV-IQ.
AV-IQ [Member]
AV-IQ [Member]
Document Quarterly Report
Document Quarterly Report
Customer Relationship Intangibles [Member]
Customer Relationships [Member]
Entity Address, State or Province
Entity Address, State or Province
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Number of RSUs Unvested, Ending Balance
Number of RSUs Unvested, Beginning Balance
Increase (Decrease) in Accounts and Other Receivables
Trade and other receivables
Insurtech Insights [Member]
Insurtech insights.
Insurtech Insights [Member]
Preferred Stock, Shares Outstanding
Preferred stock, shares outstanding
Preferred Stock, Shares Outstanding, Beginning Balance
Preferred Stock, Shares Outstanding, Ending Balance
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Comprehensive income (loss) attributable to Emerald Holding, Inc. common stockholders
Comprehensive loss attributable to Emerald Holding, Inc. common stockholders
Non Cash Proceeds On Previous Extended Term Loan Facility
Non cash proceeds on previous extended term loan facility.
Previous Extended Term Loan Facility
Payment for Cash Settlement of Share Based Awards
Payment for cash settlement of share based awards.
Cash settlement of share-based awards
Payment for settlement of restricted stock unit awards granted in 2025
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements
Diluted effect of stock options
Geographical [Axis]
Net Investment Income [Abstract]
Other Income, net
Line of Credit Facility, Lender [Domain]
Expected to be settled between 2026 through 2028.
Expected to be Settled Between 2026 Through 2028 [Member]
Liability for awards
Deferred Compensation Liability, Classified, Noncurrent
Market-based share awards liability
Deferred Compensation Liability, Classified, Noncurrent, Total
Expected to be settled in 2025.
Expected To Be Settled In2025 [Member]
Expected to be Settled in 2025 [Member]
Performance Shares [Member]
Market-based Share Awards [Member]
Performance Shares [Member]
Long-Term Debt, Fair Value
Fair market value
Subsequent Event [Member]
Subsequent Event [Member]
Marketable Securities
Marketable Securities, Policy [Policy Text Block]
Liquidity position and managements plans.
Liquidity Position And Managements Plans Policy [Text Block]
Liquidity Position and Management's Plan
Property, Plant and Equipment [Abstract]
Other Assets, Noncurrent
Other noncurrent assets
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current
Prepaid expenses and other current assets
Second Amended And Restated Term Loan Facility [member]
Second amended and restated term loan facility.
Second Amended and Restated Term Loan Facility [Member]
Interest Expense, Debt
Interest expense
Total interest expense
Debt Instrument, Unamortized Discount, Total
Debt Instrument, Unamortized Discount
Unamortized discount
Original issuance discount
Related Party Transaction [Axis]
Related Party Transaction
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name
Business Combination, Consideration Transferred
Purchase price
Business Combination, Consideration Transferred, Total
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill
Intangible assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total
Selling, General and Administrative Expense
Selling, general and administrative expense
Selling, General and Administrative Expense, Total
Selling, general and administrative
Debt Instrument, Maturity Date
Debt maturity date
Capitalized software in progress.
Capitalized Software In Progress [Member]
Capitalized Software in Progress [Member]
Minimum [Member]
Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value per Share, Granted
Weighted-average grant date fair value
Financial Instrument [Axis]
Restricted Stock Units [Member]
Assets, Current [Abstract]
Current assets
Other Items [Member]
Other Items.
Other Items [Member]
Accounts Payable and Other Accrued Liabilities, Current
Accounts payable and other current liabilities
Total accounts payable and other current liabilities
Amortization of Intangible Assets
Amortization expense
Fair Value, Inputs, Level 3 [Member]
Level 3 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Liabilities
Earnings Per Share [Table]
Earnings Per Share [Table]
Earnings Per Share [Table]
Segment Reporting [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Financial Assets and Liabilities Measured at Fair Value on Recurring Basis
Escrow Payment
Escrow payment.
Escrow payment
Liabilities, Current [Abstract]
Current liabilities
Other events.
Other Events [Member]
Other Events [Member]
Schedule of intangible assets excluding goodwill.
Schedule Of Intangible Assets Excluding Goodwill Table [Text Block]
Summary of Intangible Assets
Related Party Transactions [Abstract]
Second Amended And Restated Term Loan Facility Third Party Fees [Member]
Second amended and restated term loan facility third party fees.
Second Amended and Restated Term Loan Facility Third Party Fees
Temporary equity and shareholders equity.
Temporary Equity And Shareholders Equity [Line Items]
Temporary Equity And Shareholders Equity [Line Items]
Balances, shares
Balances, shares
Shares, Outstanding
Other Income
Other income, net
Commitments and Contingencies
Commitments and contingencies (Note 13)
Contract with customer liability revenue recognized during period.
Contract With Customer Liability Revenue Recognized During Period
Revenue recognized
October Two Thousand Twenty Five Share Repurchase Program [Member]
October two thousand twenty five share repurchase program.
October 2025 Share Repurchase Program [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value per Share Unvested, Ending Balance
Weighted Average Grant Date Fair Value per Share Unvested, Beginning Balance
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture
Stock-based compensation, shares
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture, Total
Provision for expected credit losses
Accounts Receivable, Credit Loss Expense (Reversal)
Debt Instrument, Basis Spread on Variable Rate
Basis spread
Basis spread on variable rate
Preferred Stock, Dividend Rate, Percentage
Convertible preferred stock, percentage
Dividends Payable [Line Items]
Schedule of Goodwill [Table Text Block]
Schedule of Changes in Carrying Amount of Goodwill for Each Reportable Segment
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark
Liabilities, Noncurrent [Abstract]
Noncurrent liabilities
O2026 Q1 Dividends [Member]
O2026 Q1 Dividends [Member]
O2026 Q1 Dividends.
Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation
Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation, Total
Effect of foreign exchange rates on cash and cash equivalents
Capital Expenditures Incurred but Not yet Paid
Unpaid capital expenditures
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total
Net income
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent
Cash
Accrued Income Taxes, Current
Income tax payable
Schedule of assumptions used in determining fair value market based awards outstanding.
Schedule Of Assumptions Used In Determining Fair Value Market Based Awards Outstanding Table [Text Block]
Schedule of Assumptions Used in Determining Fair Value Performance-based Market Condition Share Awards Outstanding
Secured Debt, Current
Less: Current maturities
Term loan, current portion
Weighted Average Number of Shares Outstanding, Basic
Basic weighted average common shares outstanding
Weighted average common shares outstanding
Weighted Average Number of Shares Outstanding, Basic, Total
Goodwill, Acquired During Period
Acquired goodwill
Revenue from External Customers by Geographic Areas [Table Text Block]
Schedule of Revenues from Transactions Countries
Alternate base rate.
Alternate Base Rate [Member]
ABR [Member]
Scenario [Axis]
Interest expense debt excluding refinancing and repricing fees.
Interest Expense Debt Excluding Refinancing And Repricing Fees
Interest expense, net
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value
Aggregate Intrinsic Value, Exercisable
Contract with customer liability current excluding adjustments.
Contract With Customer Liability Current Excluding Adjustments
Deferred revenues
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Segments [Axis]
Segments
Long-Lived Tangible Asset [Domain]
Long-Lived Tangible Asset
Adjusted earnings before interest taxes depreciation and amortization.
Adjusted Earnings Before Interest Taxes Depreciation And Amortization
Subtotal Adjusted EBITDA
Segment Adjusted EBITDA
O2025 Q4 Dividends [Member]
O2025 Q4 Dividends [Member]
O2025 Q4 dividends.
Subsequent Events [Text Block]
Subsequent Events
Related Party Transactions Disclosure [Text Block]
Related Party Transactions
Business Combination, Contingent Consideration, Liability, Current
Contingent consideration
Variable Rate [Domain]
Variable Rate
2024, 2023 and 2022 Acquisitions [Member]
Two Thousand wenty Four and Two Thousand Twenty Three and Two Thousand Twenty Two Acquisitions [Member]
Two Thousand wenty Four and Two Thousand Twenty Three and Two Thousand Twenty Two Acquisitions.
Balances
Balances
Equity, Attributable to Parent
Total stockholders’ deficit
Total stockholders' equity
Share based compensation employee right to receive restricted stock equal to maximum cash price.
Share Based Compensation Employee Right To Receive Restricted Stock Equal To Maximum Cash Price
Employee right to receive restricted stock equal to maximum cash price
Interest Income and Interest Expense Disclosure [Table Text Block]
Summary of Interest Expense
Basis of Accounting, Policy [Policy Text Block]
Basis of Presentation
Statement of Stockholders' Equity [Abstract]
Term Loan Amendment third party fees.
Term Loan Amendment Third Party Fees [Member]
Use of Estimates, Policy [Policy Text Block]
Use of Estimates and Judgments
Leasehold Improvements [Member]
Leasehold Improvements [Member]
OCI, before Reclassifications, Net of Tax, Attributable to Parent
Other comprehensive income (loss) before reclassifications, net
Acquired Finite-Lived Intangible Asset, Residual Value
Assumed residual value
Entity Address, Address Line Two
Entity Address, Address Line Two
Fair Value Disclosures [Text Block]
Fair Value Measurements and Financial Risk
Dividends Payable, Date Declared
Dividend declared on
Remeasurement of contingent consideration.
Remeasurement Of Contingent Consideration
Remeasurement of contingent consideration
Amended and restated revolving credit facility.
Amended And Restated Revolving Credit Facility [Member]
Amended and Restated Revolving Credit Facility [Member]
United States
UNITED STATES
Debt Instrument, Name [Domain]
Debt Instrument, Name
General corporate and other expenses.
General Corporate And Other Expenses
General corporate and other expenses
Amended and Restated Term Loan Facility [Member]
Amended and restated term loan facility.
Amended And Restated Term Loan Facility [Member]
Amended and Restated Term Loan Facility [Member]
Debt covenant leverage ratio.
Debt Covenant Leverage Ratio
Leverage ratio
Plum River [Member]
Plum River [Member]
PlumRiver.
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]
O2024 Q3 Dividends [Member]
O2024Q3 Dividends [Member]
O2024Q3 Dividends.
Plan Name
Plan Name [Domain]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date
Entity [Domain]
Credit Facility [Axis]
Credit Facility
GRC World Forums.
GRC World Forums [Member]
GRC [Member]
GRC World Forums [Member]
Dividends [Member]
O2024Q4 Dividends.
O2024Q4 Dividends [Member]
Contingent consideration
Increase Decrease In Contingent Consideration
Increase Decrease In Contingent Consideration.
Certificates of Deposit [Member]
Certificates of Deposits [Member]
Other Noncurrent Assets [Member]
Other Noncurrent Assets [Member]
Participation Rights On Converted Basis
Participation rights on converted basis.
Participation rights on if-converted basis
Contracts with customers sales beginning period.
Contracts With Customers Sales Beginning Period
Contracts with customers sales beginning period
Increase (Decrease) in Income Taxes Payable
Income tax payable
Number of additional operating segments that do not meet quantitative thresholds for reporting segment.
Number Of Additional Operating Segments That Do Not Meet Quantitative Thresholds For Reporting Segment
Number of additional operating segments that do not meet quantitative thresholds for reporting segment
Insurance for proceeds.
Insurance For Proceeds
Insurance for proceeds
April Two Thousand Twenty Five Share Repurchase Program [Member]
April 2025 Share Repurchase Program.
April 2025 Share Repurchase Program [Member]
Entity Address, City or Town
Entity Address, City or Town
Business acquisition
Ending Balance
Beginning Balance
Contingent consideration on purchase price
Contingent consideration
Business Combination, Contingent Consideration, Liability, Total
Estimated contingent consideration liability
Stock Repurchased During Period, Shares
Repurchase of common stock, shares
Repurchase of common stock, shares
First Lien Net Leverage Ratio
First lien net leverage ratio.
First lien net leverage ratio
Chief Operating Decision Maker [Member]
Chief operating decision maker.
Chief Operating Decision Maker [Member]
Number of Reportable Segments
Number of reportable segments
Security Exchange Name
Security Exchange Name
Credit Facility [Domain]
Credit Facility
Long-Term Debt, Gross
Borrowings outstanding
Property, Plant and Equipment, Gross
Property and equipment, gross
Property, Plant and Equipment, Gross, Total
Property, Plant and Equipment, Gross, Beginning Balance
Property, Plant and Equipment, Gross, Ending Balance
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Loss before income taxes
Income (loss) before income taxes
Income before income taxes
Concentration Risk Type
Concentration Risk Type [Domain]
Extended Term Loan Facility
Non Cash Payment On Extended Term Loan Facility
Non Cash Payment On Extended Term Loan Facility
Measurement Basis [Axis]
Measurement Basis
Statistical Measurement [Domain]
Statistical Measurement
Assets, Current
Total current assets
Share-Based Payment Arrangement, Expense
Stock-based compensation expense
Revenue From Contract With Customer Payment Terms With Commerce Revenues
Revenue from contract with customer payment terms with commerce revenues.
Payment term
Earnings per share.
Earnings Per Share [Line Items]
Earnings Per Share [Line Items]
Document Period End Date
Document Period End Date
Title and Position [Axis]
Title of Individual
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number
Number of Options, Exercisable
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)
Intangible asset impairment charges
Intangible asset impairment charges
Impairment of indefinite-lived intangible assets
Other income, net
Other Income, Net
Other income, net
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life
Weighted-average amortization period
Statement of Financial Position [Abstract]
Restricted Stock Units (RSUs) [Member]
Restricted Stock Units [Member]
Restricted Stock Units [Member]
Redeemable Convertible Preferred Stock [Member]
Redeemable Convertible Preferred Stock [Member]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Other comprehensive (loss) income, net of tax:
Class of Stock [Axis]
Class of Stock
Expected To Be Settled In 2026 [Member]
Expected to be settled in 2026.
Expected to Be Settled In 2026 [Member]
Liabilities
Total liabilities
Total liabilities
Generis Group [Member]
Generis group.
Financial Instruments [Domain]
Dividend payable / Dividends on common stock
Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings
Contracts with customers commission benefitted expected period.
Contracts With Customers Commission Benefitted Expected Period
Contracts with customers commission benefited expected period
Variable Rate [Axis]
Variable Rate
Indefinite-Lived Intangible Assets, Major Class Name [Domain]
Indefinite-Lived Intangible Assets, Major Class Name
Subscription software and services.
Subscription Software And Services [Member]
Subscription Software and Services [Member]
Weighted Average Number of Shares Outstanding, Diluted
Diluted weighted average common shares outstanding
Diluted weighted average common shares outstanding
Securities Act File Number
Entity File Number
Payments of Ordinary Dividends, Common Stock
Dividends on common stock
Second amended and restated revolving credit facility
Second Amended And Restated Revolving Credit Facility [Member]
Second amended and restated revolving credit facility.
Non Recurring Legal Audit And Consulting Fees
Non recurring legal audit and consulting fees.
Non-recurring legal, audit and consulting fees
Cover [Abstract]
ASU 2021-01 [Member]
Accounting Standards Update 2021-01 [Member]
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total
Accounts payable and other liabilities
Prepaid Expense and Other Assets, Current
Prepaid expenses and other current assets
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Number of RSUs, Forfeited
Estimated shares of common stock issued were forfeited
Revenue Benchmark [Member]
Sales Revenue, Net [Member]
Scenario [Domain]
Number of operating segment
Number of Operating Segments
Segment Reporting Disclosure [Text Block]
Segment Information
Selling, General and Administrative Expense [Abstract]
Selling, general and administrative expenses
Business combination recognized identifiable assets acquired and liabilities assumed right-of-use lease liability.
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Right Of Use Lease Liability
Right-of-use lease liability
Business Combination, Contingent Consideration, Liability, Noncurrent
Contingent consideration
EDspaces, PlumRiver Technologies ("PlumRiver"), Sue Bryce Education and The Portrait Masters, AV-IQ, Advertising Week, and Bulletin.
EDspaces, PlumRiver Technologies ("PlumRiver"), Sue Bryce Education and The Portrait Masters, AV-IQ, Advertising Week, and Bulletin [Member]
Temporary Equity, Liquidation Preference
Temporary equity, liquidation preference
G3 Communications, EDspaces, PlumRiver, Sue Bryce Education, MJBiz, Advertising Week and Bulletin.
G3 Communications, EDspaces, PlumRiver, Sue Bryce Education, MJBiz, Advertising Week and Bulletin [Member]
G3 Communications, EDspaces, PlumRiver, Sue Bryce Education, MJBiz, Advertising Week and Bulletin [Member]
Dividends Declared [Table Text Block]
Summary of Dividend activity
Subsequent Event [Table]
Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax
Total pro-forma net income
LIBOR [Member]
LIBOR [Member]
LIBOR [Member]
Expected to be settled n 2027.
Expected To Be Settled In2027 [Member]
Expected to be Settled in 2027 [Member]
Intangible Assets, Gross (Excluding Goodwill)
Gross carrying amount
Intangible Assets, Gross (Excluding Goodwill), Total
Gain (Loss) on Extinguishment of Debt, Total
Gain (Loss) on Extinguishment of Debt
Loss on extinguishment of debt
Loss on extinguishment of debt
Hotel interactive.
Hotel Interactive [Member]
Decrease in interest rate percentage
Debt Instrument, Interest Rate, Increase (Decrease)
New Accounting Pronouncements, Policy [Policy Text Block]
Recently Issued Accounting Pronouncements
Related Party, ownership percentage.
Related Party, Ownership Percentage
Related parties, ownership percentage
Furniture equipment and other.
Furniture Equipment And Other [Member]
Furniture, Equipment and Other [Member]
Contract with Customer, Liability, Current
Current deferred revenues
Escrow Payment for Business Acquisition
Escrow payment for business acquisition.
Escrow payment for business acquisition
Depreciation expense related to property and equipment
Depreciation
Depreciation, Total
Proceeds from Extended Term Loan Facility
Proceeds from Issuance of Long-Term Debt
Proceeds from Issuance of Long-Term Debt, Total
Proceeds from Second Amended and Restated Term Loan Facility
Corporate [Member]
Corporate Segment [Member]
Common Stock, Shares, Outstanding
Common stock, shares outstanding
Common Stock, Shares, Outstanding, Beginning Balance
Common Stock, Shares, Outstanding, Ending Balance
Operating Lease, Liability, Current
Right-of-use lease liabilities, current portion
Depreciation, Depletion and Amortization
Depreciation and amortization expense
Depreciation and amortization
Depreciation, Depletion and Amortization, Total
Depreciation and amortization expense
Revenue recognition of remaining performance obligations amount
Revenue, Remaining Performance Obligation, Amount
Dividends [Domain]
Document Transition Report
Document Transition Report
Business Combination, Contingent Consideration [Table]
Payments for Repurchase of Common Stock
Repurchase of common stock
Statement of Cash Flows [Abstract]
Stock Issued During Period, Value, New Issues
Issuance of common stock under equity plans
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
Schedule of Stock Option Activity
Assets, Fair Value Disclosure [Abstract]
Assets
Acquisition of businesses, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Business acquisition, initial cash payment
Equity [Text Block]
Stockholders' Equity
Earnings Per Share
Earnings Per Share [Text Block]
Net income attributable to Emerald Holding, Inc.
Net income attributable to Emerald Holding, Inc.
Selling, general and administrative expense insurance.
Selling, General And Administrative Expense Insurance
Selling, general and administrative expense insurance
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value
Aggregate Intrinsic Value, Outstanding Balance
Expected to be settled in 2028.
Expected To Be Settled In 2028 [Member]
Expected to be Settled In 2028 [Member]
Accounting Changes and Error Corrections [Abstract]
Payment due from the seller
Business Combination Contingent Consideration Payment Receivable From Seller
Business combination contingent consideration payment receivable from seller.
Income Tax Contingency [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Dividend yield
Intangible Assets, Net (Excluding Goodwill)
Intangible assets, net
Net carrying amount
Allowance for credit losses
Provision for Loan, Lease, and Other Losses
Provision for Loan, Lease, and Other Losses, Total
Assets [Abstract]
Assets
October 2024 Share Repurchase Program [Member]
October Two Thousand Twenty Four Share Repurchase Program [Member]
October two thousand twenty four share repurchase program.
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Risk-free interest rate
Increase (Decrease) in Prepaid Expense and Other Assets
Prepaid expenses and other assets
Amortization of Debt Issuance Costs and Discounts
Amortization of deferred financing fees and debt discount
Non-cash interest for amortization of debt discount and debt issuance costs
Amortization of Debt Issuance Costs and Discounts, Total
Document Fiscal Year Focus
Document Fiscal Year Focus
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Summary of the Changes in Accumulated Balances of Other Comprehensive Income (Loss)
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Revenue recognition of remaining performance obligations original expected period
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
Investing activities
Held events description.
Held Events Description
Held events description
Interest Expense, Long-Term Debt
Interest Expense, Long-Term Debt, Total
Interest expense on term loan
All Other [Member]
Other Operating Segment [Member]
All Other Category [Member]
Accounting Standards Update 2019-12 [Member]
ASU 2019-12 [Member]
Increase (Decrease) in Other Noncurrent Assets
Other noncurrent assets
Non Segment Related [Member]
Non-segment related.
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture
Stock-based compensation
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture, Total
AV-IQ, Advertising Week, Bulletin and Lodestone.
AV-IQ, Advertising Week, Bulletin and Lodestone [Member]
Release of Holdback Related to Prior Business Acquisition
Release of holdback related to prior business acquisition.
Release of holdback related to prior business acquisition
Fair Value Disclosures [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Net Income (Loss) Available to Common Stockholders, Basic
Net loss attributable to Emerald Holding, Inc. common stockholders
Net loss attributable to Emerald Holding, Inc. common stockholders
Deferred revenues
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current
Payment of contingent consideration
Payment for Contingent Consideration Liability, Financing Activities
Payment of contingent consideration for acquisition of businesses
Payment of contingent consideration liability
Business Combination, Pro Forma Information [Table Text Block]
Schedule of Supplemental Pro-Forma Information
Debt Instrument [Axis]
Debt Instrument
Share-Based Payment Arrangement [Abstract]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Unrecognized stock-based compensation expense
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total
Assets, Fair Value Disclosure
Total assets at fair value
Business Combination, Recognized Liability Assumed, Deferred Tax Liability
Deferred tax liability
Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Excluding Option Exercised
Proceeds from issuance of common stock under equity plans
Concentration Risk, Percentage
Concentration risk, percentage
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
Schedule of Restricted Stock Units Activity
Revenues, Total
Revenues
Revenue
Revenues
Plant Based World [Member]
Plant based world.
Plant Based World [Member]
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Net cash used in investing activities
O2026 Q2 Dividends [Member]
O2026 Q2 Dividends.
Title of 12(b) Security
Title of 12(b) Security
Schedule of Segment Reporting Information, by Segment [Table]
Schedule Of Segment Reporting Information By Segment [Table]
Fed Funds Effective Rate Overnight Index Swap Rate [Member]
Federal Funds Effective Swap Rate [Member]
Business combination recognized identifiable assets acquired and liabilities assumed right-of-use lease asset.
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Right Of Use Lease Asset
Right-of-use lease asset
Share Repurchase Program, Remaining Authorized, Amount
Stock repurchase program, remaining authorized repurchase amount
Weighted-Average Exercise Price per Option, Forfeited/Expired
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value per Share, Forfeited
Money Market Funds [Member]
Money Market Mutual Funds [Member]
Income Tax Disclosure [Text Block]
Income Taxes
Interest Expense [Member]
Temporary Equity, Shares Issued
Temporary equity, shares issued
Accounting Standards Update 2021-08.
Accounting Standards Update2012108 [Member]
ASU 2021-08 [Member]
Other Liabilities, Noncurrent
Other noncurrent liabilities
Legal Entity [Axis]
Changes in operating assets and liabilities, net of effect of businesses acquired:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]
Property, Plant and Equipment [Table Text Block]
Summary of Property and Equipment, Net
Letters of Credit Outstanding, Amount
Letters of credit outstanding amount
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Weighted-Average Exercise Price per Option Outstanding, Ending Balance
Weighted-Average Exercise Price per Option Outstanding, Beginning Balance
Income Tax Disclosure [Abstract]
Trade Show and Other Events [Member]
Trade Show And Other Events [Member]
Trade show and other events.
Fair Value, Recurring and Nonrecurring [Table]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]
Business Combination [Text Block]
Business Acquisitions
Unrecognized Tax Benefits
Liabilities for unrecognized tax benefits and associated interest and penalties
Unrecognized Tax Benefits, Beginning Balance
Unrecognized Tax Benefits, Ending Balance
Unrecognized tax benefits
Additional Paid-in Capital [Member]
Additional Paid-in Capital [Member]
Funded through cash transactions.
Funded Through Cash Transactions [Member]
Measurement Frequency [Domain]
Measurement Frequency
Share Repurchase Program, Authorized, Amount
Stock repurchase program, authorized amount
Statement of Income Location, Balance [Axis]
Income Statement Location
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adoption Date
Change in accounting principle, accounting standards update, adoption date
Trading Symbol
Trading Symbol
Property, Plant and Equipment Disclosure [Text Block]
Property and Equipment
Related Party Transaction [Table]
Schedule Of Related Party Transactions By Related Party [Table]
Temporary equity and shareholders equity.
Temporary Equity And Shareholders Equity [Table]
Temporary Equity And Shareholders Equity [Table]
Director [Member]
Subsequent Event Type [Axis]
Subsequent Event Type
Certificates of Deposit, at Carrying Value
Certificates of deposit
Acquired content.
Acquired Content [Member]
Acquired Content [Member]
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Financing activities
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage
Unutilized commitments fee percentage
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term
Weighted-average expected term (in years)
Fair Value, Recurring [Member]
Fair Value Measurements Recurring [Member]
7% Series A Redeemable Convertible Participating Preferred Stock [Member]
Seven percentage of series A redeemable convertible preferred stock.
Seven Percentage Of Series A Redeemable Convertible Preferred Stock [Member]
Equity Components [Axis]
Common Stock [Member]
Two Thousand Twenty Four Acquisitions [Member]
Two thousand twenty four acquisitions.
2024 Acquisitions [Member]
Equity Component [Domain]
Equity Component
Asset Class [Axis]
Asset Class
Goodwill and Intangible Assets Disclosure [Abstract]
Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block]
Summary of Purchase Price Allocation and Measurement Period Adjustment
Business Combination [Axis]
Business Acquisition
Acquired Technologies
Acquired Technologies [Member]
Acquired Technology [Member]
Statement of Comprehensive Income [Abstract]
Accounts and Other Receivables, Net, Current
Trade and other receivables, net of allowances of $3.7 million and $3.9 million as of March 31, 2026 and December 31, 2025, respectively
Maximum [Member]
Maximum [Member]
Dividends Payable, Date to be Paid
Dividends payable, date to be paid
Impairment of Intangible Assets (Excluding Goodwill), Total
Impairment of Intangible Assets (Excluding Goodwill)
Intangible asset impairments
Intangible asset impairment charges
Convex Group Ltd [Member]
Convex Group Ltd [Member]
Convex group ltd.
Liabilities, Fair Value Disclosure
Total liabilities at fair value
Statistical Measurement [Axis]
Statistical Measurement
Insurtech [Member]
Insurtech.
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Weighted-Average Exercise Price per Option, Exercised
Accounts payable and other current liabilities
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Accounts Payable And Other Current Liabilities
Business combination recognized identifiable assets acquired and liabilities assumed current liabilities accounts payable and other current liabilities.
Contract with Customer, Liability, Noncurrent
Long-term deferred revenues
Accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Common Stock, Value, Issued
Common stock, $0.01 par value; authorized shares at March 31, 2026 and December 31, 2025: 800,000; 197,909 and 197,697 shares issued and outstanding at March 31, 2026 and December 31, 2025, respectively
Share-Based Payment Arrangement, Cash Used to Settle Award
Cash settlement of share-based awards
Dividends [Axis]
Cash and Cash Equivalents [Abstract]
Cash and cash equivalents
Income Tax Contingency [Table]
Extended term loan facility.
Extended Term Loan Facility [Member]
Extended Term Loan Facility [Member]
Number of executive brand portfolios.
Number Of Executive Brand Portfolios
Number of executive brand portfolios
Original issuance discount
Original Issuance Discount
Original issuance discount
Original issuance discount.
Step-up percentage
Debt Instrument, Step-Up Percentage
Debt instrument, step-up percentage.
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Expected volatility
Cancelled event liabilities.
Cancelled Event Liabilities Current
Cancelled event liabilities
Cancelled event liabilities
Costs and Expenses
Expenses
Total expenses
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class
Schedule of Debt [Table Text Block]
Summary of Long-Term Debt
Lender Name [Axis]
Temporary Equity, Accretion to Redemption Value, Adjustment
Accretion to redemption value of redeemable convertible preferred stock
Accretion to redemption value of redeemable convertible preferred stock
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Revenue from Contract with Customer [Text Block]
Revenues
Business Combination [Table]
Schedule Of Business Acquisitions By Acquisition [Table]
Entity Registrant Name
Entity Registrant Name
Debt Disclosure [Text Block]
Debt
Customer Concentration Risk [Member]
Customer Concentration Risk [Member]
Adjusted earnings before interest tax depreciation and amortization.
Adjusted Earnings Before Interest Tax Depreciation And Amortization [Abstract]
Adjusted EBITDA
Contingent Consideration Activity
Business Combination, Contingent Consideration [Table Text Block]
Other Nonoperating Income (Expense)
Other items
Other Nonoperating Income (Expense), Total
Other expense
Additional Paid in Capital
Additional paid-in capital
Additional Paid in Capital, Total
Accumulated Other Comprehensive Income (Loss) [Table]
Subsequent Events [Abstract]
SOFR [Member]
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Income Tax Expense (Benefit)
Income Tax Expense (Benefit), Total
(Benefit from) income taxes
Provision for income taxes
Measurement Frequency [Axis]
Measurement Frequency
Dividend per share
Common Stock, Dividends, Per Share, Cash Paid
Stock Repurchased During Period, Value
Repurchase of common stock
Repurchase of common stock
Business Combination, Contingent Consideration, Type [Axis]
Contingent Consideration by Type
Costs and Expenses [Abstract]
Expenses
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total
Accumulated other comprehensive (loss) income
Accounts receivable write off
Accounts Receivable, Allowance for Credit Loss, Writeoff
Payments to Acquire Property, Plant, and Equipment
Purchases of property and equipment
Payments to Acquire Property, Plant, and Equipment, Total
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Number of RSUs, Granted
Estimated shares of common stock granted
Long-term debt, net of debt discount and deferred financing fees
Term loan, net of discount and deferred financing fees
Long-term debt, net of current maturities, debt discount and deferred financing fees
Assets
Total assets
Property, Plant and Equipment [Table]
Schedule Of Property Plant And Equipment [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Weighted-Average Remaining Contractual Term, Exercisable
Income Statement [Abstract]
Revenue from contract with customer.
Revenue From Contract With Customer [Table]
Revenue From Contract With Customer [Table]
Deferred Income Tax Expense (Benefit)
Deferred income taxes
Deferred Income Tax Expense (Benefit), Total
Selling, General and Administrative Expenses [Member]
Selling, General and Administrative Expenses [Member]
Selling, General and Administrative Expenses [Member]
Stock Issued During Period, Shares, New Issues
Issuance of common stock under equity plans, shares
Shares issued
Temporary Equity, Shares Authorized
Temporary equity, shares authorized
Number of RSUs, Vested
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Business Combination, Integration-Related Cost, Expense
Acquisition-related integration
Business Combination [Abstract]
Earnings Per Share, Diluted
Earnings Per Share, Diluted, Total
Diluted (loss) income per share
Diluted income per share
Non Cash Proceeds On Second Amended And Restated Term Loan Facility
Non-cash proceeds on second amended and restated term loan facility.
Second Amended and Restated Term Loan Facility
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Schedule of Reportable Segment Revenues Cost of Revenues and Selling General and Administrative Expenses
Title and Position [Domain]
Title of Individual
Disaggregation of Revenue [Abstract]
City Area Code
City Area Code
Emerald net (loss) income.
Emerald Net Loss Income [Member]
Emerald Net Income [Member]
Business Combination, Consideration Transferred, Liabilities Incurred
Payments due from seller
Business Combination, Pro Forma Information, Pro Forma Revenue
Total pro-forma revenues
First lien net leverage ratio for additional step-up percentage
First Lien Net Leverage Ratio for Additional Step-up Percentage
First lien net leverage ratio for additional step-up percentage.
Term Loan Facility [Member]
Term loan facility.
Term Loan Facility [Member]
Non-Rule 10b5-1 Arr Modified [Flag]
Non-Rule 10b5-1 arr modified flag.
Non-Rule 10b5-1 Arr Modified
Business Combination [Line Items]
Business Acquisition [Line Items]
Unusual or Infrequent Item, or Both [Axis]
Unusual or Infrequent Item, or Both
G3 Communications.
G3 Communications [Member]
G3 Communications [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Computer Software, Intangible Asset [Member]
Computer Software [Member]
2025 London event payment
Two Thousand Twenty Five London Event Payment
Two Thousand Twenty Five London Event Payment
Property, Plant and Equipment, Net
Property and equipment, net
Property and equipment, net
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation
End of period
Beginning of period
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total
Operating Income (Loss)
Operating loss
Operating income
Foreign currency translation
Goodwill, Foreign Currency Translation, Gain (Loss)
Connections Segment [Member]
Connections Segment [Member]
Connections segment.
Retained Earnings [Member]
Accumulated Deficit [Member]
Business Combination, Contingent Consideration, Type [Domain]
Contingent Consideration Type
Bank Of America [Member]
Bank of america.
Bank of America [Member]
Stock-based compensation
Share-Based Payment Arrangement, Noncash Expense
Share-Based Payment Arrangement, Noncash Expense, Total
Stock-based compensation expense
Two thousand nineteen employee stock purchase plan.
Two Thousand Nineteen Employee Stock Purchase Plan [Member]
2019 Employee Stock Purchase Plan [Member]
Schedule of intangible assets excluding goodwill.
Schedule Of Intangible Assets Excluding Goodwill [Line Items]
Schedule Of Intangible Assets Excluding Goodwill [Line Items]
Other Nonoperating Expense
Other expense
Right-of-use lease liabilities, noncurrent portion
Operating Lease, Liability, Noncurrent
Fair Value, Inputs, Level 1 [Member]
Level 1 [Member]
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Net cash (used in) provided by financing activities
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]
Change in accounting principle, accounting standards update, adopted
Deferred Income Tax Liabilities, Net
Deferred tax liabilities, net
Investments, Fair Value Disclosure
Marketable securities
Investments, Fair Value Disclosure, Total
Goodwill [Table]
Schedule Of Goodwill [Table]
Business Combination, Recognized Asset Acquired, Receivable, Current
Trade and other receivables
Non-US [Member]
All other countries
Entity Interactive Data Current
Entity Interactive Data Current
Increase (Decrease) in Contract with Customer, Liability
Deferred revenues
Debt instrument, basis spread on variable rate including credit spread adjustment.
Debt Instrument, Basis Spread on Variable Rate Including Credit Spread Adjustment
Basis spread including credit spread adjustment
Statement of Income Location, Balance [Domain]
Income Statement Location
G3 Communications, EDspaces, PlumRiver, Sue Bryce Education, MJBiz and Advertising Week.
G3 Communications, EDspaces, PlumRiver, Sue Bryce Education, MJBiz, Advertising Week and Bulletin [Member]
G3 Communications E Dspaces Plum River Sue Bryce Education M J Biz, Advertising Week And Bulletin [Member]
Fair Value Measurement [Domain]
Fair Value Measurement
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Operating activities
Convertible Preferred Stock, Shares Issued upon Conversion
Convertible preferred stock, converted to common stock
Convertible preferred stock, each stock converted to common stock, shares
Accounting Standards Update and Change in Accounting Principle [Text Block]
Recent Accounting Pronouncements
Amended and Restated Revolving Credit Facility and Revolving Credit Facility [Member]
Revolving Credit Facility And Amended And Restated Revolving Credit Facility [Member]
Revolving credit facility and amended and restated revolving credit facility.
Catastrophic Event [Domain]
Increase (Decrease) in Other Noncurrent Liabilities
Other noncurrent liabilities
O2025 Q3 Dividends [Member]
O2025 Q3 Dividends.
O2025 Q3 Dividends [Member]
Previous Extended Term Loan Facility [Member]
Previous Extended Term Loan Facility [Member]
Previous extended term loan facility.
Commerce segment.
Commerce Segment [Member]
Commerce [Member]
Expected to be settled in 2024.
Expected To Be Settled In2024 [Member]
Expected to be Settled in 2024 [Member]
Entity Tax Identification Number
Entity Tax Identification Number
Debt Instrument, Term
Secured debt maturity period
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Basis of Presentation
Debt Instrument, Debt Default, Description of Violation or Event of Default
Description of events of default
Local Phone Number
Local Phone Number
Related Party Transaction [Domain]
Related Party Transaction
Accumulated Other Comprehensive Income (Loss) [Line Items]
New Chief Operating Decision Maker [Member]
New Chief Operating Decision Maker [Member]
New chief operating decision maker.
Operating lease liabilities
Increase decrease in operating lease liabilities.
Increase Decrease In Operating Lease Liabilities
Cash Acquired from Acquisition
Cash acquired from business acquisition
Accounting Policies [Abstract]
Disaggregation of Revenue [Line Items]
Disaggregation Of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax
Revenues
Cash and Cash Equivalents [Member]
Cash and Cash Equivalents [Member]
Class of Stock [Domain]
Class of Stock
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Unrecognized stock-based compensation expense weighted average period of recognition
O2025 Q1 Dividends [Member]
O2025 Q1 Dividends.
O2025 Q1 Dividends [Member]
Foreign currency translation adjustments
Business Combination Contingent Consideration Liability Foreign Currency Translation Adjustments
Business combination contingent consideration liability foreign currency translation adjustments.
Entity Emerging Growth Company
Entity Emerging Growth Company
Indefinite-Lived Intangible Assets [Axis]
Indefinite-Lived Intangible Assets
Purchase price, including working capital adjustment
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill