Business combination consideration transferred including fair value of contingent consideration.

No definition available.

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Namespace Prefix:	evc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Business combination, redeemable noncontrolling interest.

+ References

No definition available.

+ Details

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Namespace Prefix:	evc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Loan term.

+ References

No definition available.

+ Details

Name:	evc_LoanTerm
Namespace Prefix:	evc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Net income (loss) excluding contingent consideration liability adjustments.

+ References

No definition available.

+ Details

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Namespace Prefix:	evc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Period of discounted cost of debt rate

+ References

No definition available.

+ Details

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Namespace Prefix:	evc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Remaining Variable Interest Rate Ownership Percentage

+ References

No definition available.

+ Details

Name:	evc_RemainingVariableInterestRateOwnershipPercentage
Namespace Prefix:	evc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the acquirer obtains control of the acquiree, in YYYY-MM-DD format.

+ References

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-URI https://asc.fasb.org//1943274/2147479405/805-10-25-6

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the best estimate at the acquisition date of the contractual cash flows not expected to be collected, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

+ References

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

- Definition

For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Balance Type:	debit
Period Type:	duration

- Definition

The net amount, measured at acquisition-date fair value, of all the assets acquired and liabilities assumed that arise from contingencies and were recognized by the entity.

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

+ References

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

- Definition

Face (par) amount of debt instrument at time of issuance.

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt.

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Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Cost of the investment.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow associated with the purchase of all investments (debt, security, other) during the period.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Acquisitions - Additional Information (Detail)						3 Months Ended		9 Months Ended		240 Months Ended
Acquisitions - Additional Information (Detail)	May 19, 2023 USD ($)	Apr. 03, 2023 USD ($)	Apr. 03, 2023 EUR (€)	Aug. 05, 2022 USD ($)	Aug. 03, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Aug. 05, 2022 USD ($)	Mar. 31, 2025	Mar. 31, 2024	Jul. 11, 2023 USD ($)	Jul. 11, 2023 GBP (£)	Apr. 03, 2023 EUR (€)	Dec. 31, 2022 USD ($)	Aug. 05, 2022 EUR (€)
Business Acquisition [Line Items]
Payment of additional amount								$ 214,495,000	$ 2,501,000
Net revenue						$ 274,417,000	$ 241,014,000	786,804,000	659,881,000
Net income						2,732,000	9,090,000	2,430,000	19,444,000
Adsmurai, S.L
Business Acquisition [Line Items]
Accounts receivables assets acquired, fair value				$ 11,900,000						$ 11,900,000
Gross amount account receivables asset acquired				12,300,000						12,300,000
Amount due under contract expected to be uncollectible				400,000						400,000
Principal amount		$ 8,100,000		$ 12,800,000						$ 12,800,000			$ 5,600,000	£ 4,993,344	€ 7,355,500		€ 12,535,000
Loan term		7 years	7 years	2 years
Loan annual interest rate		5.00%		5.00%						5.00%					5.00%		5.00%
Percentage owned or converted				51.00%						51.00%
Remaining interest owned percentage		49.00%	49.00%
Jack of Digital
Business Acquisition [Line Items]
Total purchase price for acquisition, including fair value of contingent consideration		$ 1,400,000
Investment		1,100,000			$ 100,000
Acquisition fees and costs									300,000
Percentage owned or converted					15.00%
Initial installment payment		$ 500,000
Cisneros Interactive
Business Acquisition [Line Items]
Fair value of contingent consideration recognized						$ 8,000,000		$ 8,000,000								$ 41,400,000
MediaDonuts
Business Acquisition [Line Items]
Ownership interest acquired						100.00%		100.00%
Fair value of contingent consideration recognized						$ 11,600,000		$ 11,600,000								22,200,000
BCNMonetize
Business Acquisition [Line Items]
Business acquisition date	May 19, 2023
Ownership interest acquired	100.00%					100.00%		100.00%
Aggregate cash consideration	$ 6,000,000
Accounts receivables assets acquired, fair value	2,800,000
Gross amount account receivables asset acquired	2,900,000
Amount due under contract expected to be uncollectible	$ 100,000
Period of discounted cost of debt rate	3 years
Business combination consideration, transferred	$ 7,200,000
Total purchase price for acquisition, including fair value of contingent consideration	8,800,000
Acquisition fees and costs								$ 200,000
Fair value of contingent consideration recognized	$ 1,600,000					$ 1,700,000		1,700,000
Net revenue						4,100,000		4,900,000
Net Income excluding contingent consideration liability adjustments						$ 200,000		$ 300,000
BCNMonetize \| Maximum \| Discount Rate
Business Acquisition [Line Items]
Discounted cost of debt rate	0.084
BCNMonetize \| Minimum \| Discount Rate
Business Acquisition [Line Items]
Discounted cost of debt rate	0.082
365 Digital
Business Acquisition [Line Items]
Ownership interest acquired						100.00%		100.00%
Fair value of contingent consideration recognized						$ 0		$ 0								$ 200,000
Adsmurai Acquisition
Business Acquisition [Line Items]
Business acquisition date		Apr. 03, 2023	Apr. 03, 2023
Ownership interest acquired		51.00%													51.00%
Aggregate cash consideration		$ 14,200,000	€ 13,000,000
Redeemable noncontrolling interest				$ 47,300,000						$ 47,300,000
Acquisition fees and costs							$ 300,000		$ 300,000
Adsmurai Acquisition \| Scenario Forecast
Business Acquisition [Line Items]
Ownership interest acquired											10.00%	10.00%