Master Trust - Schedule of Master Trust Net Assets (Details) - EBP 224 - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
EBP, Master Trust [Line Items]
Investments, fair value	$ 91,490	$ 80,390
Net assets	93,964	82,497
Plan
EBP, Master Trust [Line Items]
Net assets	3,372	1,564
Plan \| Legacy Enviri common stock
EBP, Master Trust [Line Items]
Investments, fair value	3,303	1,532
Plan \| Money market mutual fund
EBP, Master Trust [Line Items]
Investments, fair value	69	32
Master Trust
EBP, Master Trust [Line Items]
Net assets	9,111	4,297
Master Trust \| Legacy Enviri common stock
EBP, Master Trust [Line Items]
Investments, fair value	8,925	4,208
Master Trust \| Money market mutual fund
EBP, Master Trust [Line Items]
Investments, fair value	$ 186	$ 89

Fair value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract not meeting fully-benefit responsive investment criteria.

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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.

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Amount of asset less liability available to pay benefit of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, aggregation of participants' individual account balances.

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