Accounts receivable credits reclassified to cancelled event liabilities.

No definition available.

Name:	eex_AccountsReceivableCreditsReclassifiedToCancelledEventLiabilities
Namespace Prefix:	eex_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Cancelled event liabilities.

+ References

No definition available.

+ Details

Name:	eex_CancelledEventLiabilitiesCurrent
Namespace Prefix:	eex_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contract with customer liability revenue recognized during period.

+ References

No definition available.

+ Details

Name:	eex_ContractWithCustomerLiabilityRevenueRecognizedDuringPeriod
Namespace Prefix:	eex_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Contracts with customers commission benefitted expected period.

+ References

No definition available.

+ Details

Name:	eex_ContractsWithCustomersCommissionBenefittedExpectedPeriod
Namespace Prefix:	eex_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Contracts with customers sales beginning period.

+ References

No definition available.

+ Details

Name:	eex_ContractsWithCustomersSalesBeginningPeriod
Namespace Prefix:	eex_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Revenue from contract with customer.

+ References

No definition available.

+ Details

Name:	eex_RevenueFromContractWithCustomerLineItems
Namespace Prefix:	eex_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Revenue from contract with customer payment terms with commerce revenues.

+ References

No definition available.

+ Details

Name:	eex_RevenueFromContractWithCustomerPaymentTermsWithCommerceRevenues
Namespace Prefix:	eex_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-42

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI https://asc.fasb.org/1943274/2147482907/825-10-50-21

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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-URI https://asc.fasb.org/1943274/2147482861/275-10-50-18

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-20

+ Details

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-2

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_ProductOrServiceAxis=eex_TradeShowAndOtherEventsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesRevenueNetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ProductOrServiceAxis=eex_TradeShowsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_UnusualOrInfrequentItemAxis=eex_CoronavirusDiseaseTwoThousandNineteenMember
Namespace Prefix:
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Balance Type:
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Revenues - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Revenue From Contract With Customer [Line Items]
Current deferred revenues	$ 185.2		$ 190.5
Revenue recognized	103.4
Cancelled event liabilities	$ 1.2		1.2
Maximum [Member]
Revenue From Contract With Customer [Line Items]
Contracts with customers sales beginning period	1 year
Contracts with customers commission benefited expected period	1 year
Payment term	60 days
Minimum [Member]
Revenue From Contract With Customer [Line Items]
Payment term	30 days
Trade Show and Other Events [Member] \| Sales Revenue, Net [Member] \| Customer Concentration Risk [Member]
Revenue From Contract With Customer [Line Items]
Concentration risk, percentage	93.60%	92.50%
Trade Shows [Member] \| COVID-19 [Member]
Revenue From Contract With Customer [Line Items]
Current deferred revenues	$ 0.8
Accounts receivable credits reclassified to cancelled event liabilities	$ 0.4		$ 1.1