v3.25.4

Leases - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating Leased Assets [Line Items]
Remaining lease term, operating lease	12 months
Lessee, operating lease, existence of option to extend	true
Lease renewal term, operating lease	5 years
Lessee, operating lease, existence of option to terminate	true
Right-of-use lease assets	$ 6.4	$ 6.4
Right-of-use lease liabilities, noncurrent	$ 3.2	$ 5.5
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Weighted-average remaining lease term	1 year 10 months 24 days	2 years 7 months 6 days
Rent expense incurred under operating leases	$ 3.8	$ 3.3	$ 4.2
Loss on lease abandonment			0.9
Variable lease costs	$ 0.0	$ 0.0	0.0
Weighted-average discount rate	5.90%	5.20%
Cost Of Revenues [Member]
Operating Leased Assets [Line Items]
Rent expense incurred under operating leases	$ 1.2	$ 1.2	1.2
Selling, General and Administrative Expenses [Member]
Operating Leased Assets [Line Items]
Rent expense incurred under operating leases	$ 2.6	$ 2.1	$ 3.0
Minimum [Member]
Operating Leased Assets [Line Items]
Remaining lease term, operating lease	1 year
Maximum [Member]
Operating Leased Assets [Line Items]
Remaining lease term, operating lease	4 years

Amount of gain (loss) on termination of lease before expiration of lease term.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
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- Definition

Indicates (true false) whether lessee has option to extend operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Indicates (true false) whether lessee has option to terminate operating lease.

+ References

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- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

+ References

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- Definition

Indicates line item in statement of financial position that includes noncurrent operating lease liability.

+ References

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

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- Definition

Indicates line item in statement of financial position that includes operating lease right-of-use asset.

+ References

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- 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

No definition available.

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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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Emerald Holding, Inc. 10-K